{"url":"http://public2.vulnerablecode.io/api/packages/82628?format=json","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core@2.204.2","type":"maven","namespace":"org.jenkins-ci.main","name":"jenkins-core","version":"2.204.2","qualifiers":{},"subpath":"","is_vulnerable":false,"next_non_vulnerable_version":"2.214","latest_non_vulnerable_version":"2.555","affected_by_vulnerabilities":[],"fixing_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/59091?format=json","vulnerability_id":"VCID-at4v-19pn-wqf2","summary":"Jenkins REST APIs vulnerable to clickjacking\nJenkins 2.218 and earlier, LTS 2.204.1 and earlier does not serve the `X-Frame-Options: deny` HTTP header on REST API responses to protect against clickjacking attacks. An attacker could exploit this by routing the victim through a specially crafted web page that embeds a REST API endpoint in an iframe and tricking the user into performing an action which would allow for the attacker to learn the content of that REST API endpoint.\n\nJenkins 2.219, LTS 2.204.2 now adds the `X-Frame-Options: deny` HTTP header to REST API responses, which prevents these types of clickjacking attacks.","references":[{"reference_url":"https://access.redhat.com/errata/RHBA-2020:0402","reference_id":"","reference_type":"","scores":[{"value":"3.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N"},{"value":"LOW","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHBA-2020:0402"},{"reference_url":"https://access.redhat.com/errata/RHBA-2020:0675","reference_id":"","reference_type":"","scores":[{"value":"3.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N"},{"value":"LOW","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHBA-2020:0675"},{"reference_url":"https://access.redhat.com/errata/RHSA-2020:0681","reference_id":"","reference_type":"","scores":[{"value":"3.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N"},{"value":"LOW","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHSA-2020:0681"},{"reference_url":"https://access.redhat.com/errata/RHSA-2020:0683","reference_id":"","reference_type":"","scores":[{"value":"3.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N"},{"value":"LOW","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHSA-2020:0683"},{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-2105.json","reference_id":"","reference_type":"","scores":[{"value":"3.1","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-2105.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2020-2105","reference_id":"","reference_type":"","scores":[{"value":"0.00345","scoring_system":"epss","scoring_elements":"0.57046","published_at":"2026-05-12T12:55:00Z"},{"value":"0.00345","scoring_system":"epss","scoring_elements":"0.57121","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00345","scoring_system":"epss","scoring_elements":"0.571","published_at":"2026-04-18T12:55:00Z"},{"value":"0.00345","scoring_system":"epss","scoring_elements":"0.57076","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00345","scoring_system":"epss","scoring_elements":"0.57105","published_at":"2026-04-16T12:55:00Z"},{"value":"0.00345","scoring_system":"epss","scoring_elements":"0.57078","published_at":"2026-04-21T12:55:00Z"},{"value":"0.00345","scoring_system":"epss","scoring_elements":"0.57013","published_at":"2026-04-29T12:55:00Z"},{"value":"0.00345","scoring_system":"epss","scoring_elements":"0.57032","published_at":"2026-04-26T12:55:00Z"},{"value":"0.00345","scoring_system":"epss","scoring_elements":"0.56964","published_at":"2026-05-05T12:55:00Z"},{"value":"0.00345","scoring_system":"epss","scoring_elements":"0.5701","published_at":"2026-05-07T12:55:00Z"},{"value":"0.00345","scoring_system":"epss","scoring_elements":"0.57072","published_at":"2026-05-09T12:55:00Z"},{"value":"0.00345","scoring_system":"epss","scoring_elements":"0.57022","published_at":"2026-05-11T12:55:00Z"},{"value":"0.00345","scoring_system":"epss","scoring_elements":"0.56963","published_at":"2026-04-01T12:55:00Z"},{"value":"0.00345","scoring_system":"epss","scoring_elements":"0.57057","published_at":"2026-04-07T12:55:00Z"},{"value":"0.00345","scoring_system":"epss","scoring_elements":"0.57079","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00345","scoring_system":"epss","scoring_elements":"0.57107","published_at":"2026-04-08T12:55:00Z"},{"value":"0.00345","scoring_system":"epss","scoring_elements":"0.57109","published_at":"2026-04-09T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2020-2105"},{"reference_url":"https://github.com/jenkinsci/jenkins","reference_id":"","reference_type":"","scores":[{"value":"3.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N"},{"value":"LOW","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/jenkinsci/jenkins"},{"reference_url":"https://github.com/jenkinsci/jenkins/commit/639ade55caa05324c60d15b2fa8df27ee0111b76","reference_id":"","reference_type":"","scores":[{"value":"3.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N"},{"value":"LOW","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/jenkinsci/jenkins/commit/639ade55caa05324c60d15b2fa8df27ee0111b76"},{"reference_url":"https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1704","reference_id":"","reference_type":"","scores":[{"value":"3.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N"},{"value":"LOW","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1704"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2105","reference_id":"","reference_type":"","scores":[{"value":"3.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N"},{"value":"LOW","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2105"},{"reference_url":"http://www.openwall.com/lists/oss-security/2020/01/29/1","reference_id":"","reference_type":"","scores":[{"value":"3.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N"},{"value":"LOW","scoring_system":"generic_textual","scoring_elements":""}],"url":"http://www.openwall.com/lists/oss-security/2020/01/29/1"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=1797068","reference_id":"1797068","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1797068"},{"reference_url":"https://github.com/advisories/GHSA-7xp8-7wqx-5hqx","reference_id":"GHSA-7xp8-7wqx-5hqx","reference_type":"","scores":[{"value":"LOW","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-7xp8-7wqx-5hqx"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/82628?format=json","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core@2.204.2","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.204.2"},{"url":"http://public2.vulnerablecode.io/api/packages/82627?format=json","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core@2.219","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.219"}],"aliases":["CVE-2020-2105","GHSA-7xp8-7wqx-5hqx"],"risk_score":1.4,"exploitability":"0.5","weighted_severity":"2.8","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-at4v-19pn-wqf2"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/57931?format=json","vulnerability_id":"VCID-kvq9-4uqu-pfah","summary":"Jenkins vulnerable to UDP amplification reflection attack\nJenkins 2.218 and earlier, LTS 2.204.1 and earlier supports two network discovery services (UDP multicast/broadcast and DNS multicast) by default.\n\nThe UDP multicast/broadcast service can be used in an amplification reflection attack, as very few bytes sent to the respective endpoint result in much larger responses: A single byte request to this service would respond with more than 100 bytes of Jenkins metadata which could be used in a DDoS attack on a Jenkins controller. Within the same network, spoofed UDP packets could also be sent to make two Jenkins controllers go into an infinite loop of replies to one another, thus causing a denial of service.\n\nJenkins 2.219, LTS 2.204.2 now disables both UDP multicast/broadcast and DNS multicast by default.\n\nAdministrators that need these features can re-enable them again by setting the system property `hudson.DNSMultiCast.disabled` to `false` (for DNS multicast) or the system property `hudson.udp` to `33848`, or another port (for UDP broadcast/multicast). These are the same system properties that controlled whether these features were enabled in the past, so any instances explicitly enabling these features by setting these system properties will continue to have them enabled.","references":[{"reference_url":"https://access.redhat.com/errata/RHBA-2020:0402","reference_id":"","reference_type":"","scores":[{"value":"5.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHBA-2020:0402"},{"reference_url":"https://access.redhat.com/errata/RHBA-2020:0675","reference_id":"","reference_type":"","scores":[{"value":"5.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHBA-2020:0675"},{"reference_url":"https://access.redhat.com/errata/RHSA-2020:0681","reference_id":"","reference_type":"","scores":[{"value":"5.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHSA-2020:0681"},{"reference_url":"https://access.redhat.com/errata/RHSA-2020:0683","reference_id":"","reference_type":"","scores":[{"value":"5.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHSA-2020:0683"},{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-2100.json","reference_id":"","reference_type":"","scores":[{"value":"5.8","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-2100.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2020-2100","reference_id":"","reference_type":"","scores":[{"value":"0.0137","scoring_system":"epss","scoring_elements":"0.80361","published_at":"2026-05-12T12:55:00Z"},{"value":"0.0137","scoring_system":"epss","scoring_elements":"0.80215","published_at":"2026-04-13T12:55:00Z"},{"value":"0.0137","scoring_system":"epss","scoring_elements":"0.80243","published_at":"2026-04-16T12:55:00Z"},{"value":"0.0137","scoring_system":"epss","scoring_elements":"0.80244","published_at":"2026-04-18T12:55:00Z"},{"value":"0.0137","scoring_system":"epss","scoring_elements":"0.80248","published_at":"2026-04-21T12:55:00Z"},{"value":"0.0137","scoring_system":"epss","scoring_elements":"0.80274","published_at":"2026-04-24T12:55:00Z"},{"value":"0.0137","scoring_system":"epss","scoring_elements":"0.8028","published_at":"2026-04-26T12:55:00Z"},{"value":"0.0137","scoring_system":"epss","scoring_elements":"0.80296","published_at":"2026-04-29T12:55:00Z"},{"value":"0.0137","scoring_system":"epss","scoring_elements":"0.80311","published_at":"2026-05-05T12:55:00Z"},{"value":"0.0137","scoring_system":"epss","scoring_elements":"0.80333","published_at":"2026-05-07T12:55:00Z"},{"value":"0.0137","scoring_system":"epss","scoring_elements":"0.8035","published_at":"2026-05-09T12:55:00Z"},{"value":"0.0137","scoring_system":"epss","scoring_elements":"0.80345","published_at":"2026-05-11T12:55:00Z"},{"value":"0.0137","scoring_system":"epss","scoring_elements":"0.80162","published_at":"2026-04-01T12:55:00Z"},{"value":"0.0137","scoring_system":"epss","scoring_elements":"0.80169","published_at":"2026-04-02T12:55:00Z"},{"value":"0.0137","scoring_system":"epss","scoring_elements":"0.80189","published_at":"2026-04-04T12:55:00Z"},{"value":"0.0137","scoring_system":"epss","scoring_elements":"0.80178","published_at":"2026-04-07T12:55:00Z"},{"value":"0.0137","scoring_system":"epss","scoring_elements":"0.80206","published_at":"2026-04-08T12:55:00Z"},{"value":"0.0137","scoring_system":"epss","scoring_elements":"0.80214","published_at":"2026-04-09T12:55:00Z"},{"value":"0.0137","scoring_system":"epss","scoring_elements":"0.80234","published_at":"2026-04-11T12:55:00Z"},{"value":"0.0137","scoring_system":"epss","scoring_elements":"0.8022","published_at":"2026-04-12T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2020-2100"},{"reference_url":"https://github.com/jenkinsci/jenkins","reference_id":"","reference_type":"","scores":[{"value":"5.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/jenkinsci/jenkins"},{"reference_url":"https://github.com/jenkinsci/jenkins/commit/cd28a6d9347228b03da0e45653e23032342c2a36","reference_id":"","reference_type":"","scores":[{"value":"5.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/jenkinsci/jenkins/commit/cd28a6d9347228b03da0e45653e23032342c2a36"},{"reference_url":"https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1641","reference_id":"","reference_type":"","scores":[{"value":"5.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1641"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2100","reference_id":"","reference_type":"","scores":[{"value":"5.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2100"},{"reference_url":"http://www.openwall.com/lists/oss-security/2020/01/29/1","reference_id":"","reference_type":"","scores":[{"value":"5.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"http://www.openwall.com/lists/oss-security/2020/01/29/1"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=1797087","reference_id":"1797087","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1797087"},{"reference_url":"https://github.com/advisories/GHSA-gpxv-776p-7gc7","reference_id":"GHSA-gpxv-776p-7gc7","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-gpxv-776p-7gc7"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/82628?format=json","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core@2.204.2","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.204.2"},{"url":"http://public2.vulnerablecode.io/api/packages/82627?format=json","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core@2.219","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.219"}],"aliases":["CVE-2020-2100","GHSA-gpxv-776p-7gc7"],"risk_score":3.1,"exploitability":"0.5","weighted_severity":"6.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-kvq9-4uqu-pfah"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/58037?format=json","vulnerability_id":"VCID-qg4r-a3xt-kfbh","summary":"Memory usage graphs accessible to anyone with Overall/Read\nJenkins includes a feature that shows a JVM memory usage chart for the Jenkins controller.\n\nAccess to the chart in Jenkins 2.218 and earlier, LTS 2.204.1 and earlier requires no permissions beyond the general Overall/Read, allowing users who are not administrators to view JVM memory usage data.\n\nJenkins 2.219, LTS 2.204.2 now requires Overall/Administer permissions to view the JVM memory usage chart.","references":[{"reference_url":"https://access.redhat.com/errata/RHBA-2020:0402","reference_id":"","reference_type":"","scores":[{"value":"4.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHBA-2020:0402"},{"reference_url":"https://access.redhat.com/errata/RHBA-2020:0675","reference_id":"","reference_type":"","scores":[{"value":"4.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHBA-2020:0675"},{"reference_url":"https://access.redhat.com/errata/RHSA-2020:0681","reference_id":"","reference_type":"","scores":[{"value":"4.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHSA-2020:0681"},{"reference_url":"https://access.redhat.com/errata/RHSA-2020:0683","reference_id":"","reference_type":"","scores":[{"value":"4.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHSA-2020:0683"},{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-2104.json","reference_id":"","reference_type":"","scores":[{"value":"4.3","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-2104.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2020-2104","reference_id":"","reference_type":"","scores":[{"value":"0.00473","scoring_system":"epss","scoring_elements":"0.64812","published_at":"2026-05-12T12:55:00Z"},{"value":"0.00473","scoring_system":"epss","scoring_elements":"0.64686","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00473","scoring_system":"epss","scoring_elements":"0.64722","published_at":"2026-04-16T12:55:00Z"},{"value":"0.00473","scoring_system":"epss","scoring_elements":"0.64734","published_at":"2026-04-18T12:55:00Z"},{"value":"0.00473","scoring_system":"epss","scoring_elements":"0.6472","published_at":"2026-04-21T12:55:00Z"},{"value":"0.00473","scoring_system":"epss","scoring_elements":"0.6474","published_at":"2026-04-24T12:55:00Z"},{"value":"0.00473","scoring_system":"epss","scoring_elements":"0.64753","published_at":"2026-04-26T12:55:00Z"},{"value":"0.00473","scoring_system":"epss","scoring_elements":"0.64749","published_at":"2026-04-29T12:55:00Z"},{"value":"0.00473","scoring_system":"epss","scoring_elements":"0.6473","published_at":"2026-05-05T12:55:00Z"},{"value":"0.00473","scoring_system":"epss","scoring_elements":"0.64777","published_at":"2026-05-07T12:55:00Z"},{"value":"0.00473","scoring_system":"epss","scoring_elements":"0.6482","published_at":"2026-05-09T12:55:00Z"},{"value":"0.00473","scoring_system":"epss","scoring_elements":"0.64791","published_at":"2026-05-11T12:55:00Z"},{"value":"0.00473","scoring_system":"epss","scoring_elements":"0.64607","published_at":"2026-04-01T12:55:00Z"},{"value":"0.00473","scoring_system":"epss","scoring_elements":"0.64659","published_at":"2026-04-02T12:55:00Z"},{"value":"0.00473","scoring_system":"epss","scoring_elements":"0.64687","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00473","scoring_system":"epss","scoring_elements":"0.64645","published_at":"2026-04-07T12:55:00Z"},{"value":"0.00473","scoring_system":"epss","scoring_elements":"0.64694","published_at":"2026-04-08T12:55:00Z"},{"value":"0.00473","scoring_system":"epss","scoring_elements":"0.64709","published_at":"2026-04-09T12:55:00Z"},{"value":"0.00473","scoring_system":"epss","scoring_elements":"0.64726","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00473","scoring_system":"epss","scoring_elements":"0.64714","published_at":"2026-04-12T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2020-2104"},{"reference_url":"https://github.com/jenkinsci/jenkins","reference_id":"","reference_type":"","scores":[{"value":"4.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/jenkinsci/jenkins"},{"reference_url":"https://github.com/jenkinsci/jenkins/commit/7d44836fad0f49341ae2a61de06dbb556014a2df","reference_id":"","reference_type":"","scores":[{"value":"4.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/jenkinsci/jenkins/commit/7d44836fad0f49341ae2a61de06dbb556014a2df"},{"reference_url":"https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1650","reference_id":"","reference_type":"","scores":[{"value":"4.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1650"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2104","reference_id":"","reference_type":"","scores":[{"value":"4.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2104"},{"reference_url":"http://www.openwall.com/lists/oss-security/2020/01/29/1","reference_id":"","reference_type":"","scores":[{"value":"4.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"http://www.openwall.com/lists/oss-security/2020/01/29/1"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=1797065","reference_id":"1797065","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1797065"},{"reference_url":"https://github.com/advisories/GHSA-r78q-qgx6-64pp","reference_id":"GHSA-r78q-qgx6-64pp","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-r78q-qgx6-64pp"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/82628?format=json","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core@2.204.2","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.204.2"},{"url":"http://public2.vulnerablecode.io/api/packages/82627?format=json","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core@2.219","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.219"}],"aliases":["CVE-2020-2104","GHSA-r78q-qgx6-64pp"],"risk_score":3.1,"exploitability":"0.5","weighted_severity":"6.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-qg4r-a3xt-kfbh"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/58662?format=json","vulnerability_id":"VCID-s9rq-3bpy-83fu","summary":"Non-constant time HMAC comparison\nJenkins 2.218 and earlier, LTS 2.204.1 and earlier does not use a constant-time comparison when checking whether two HMACs are equal. This could potentially allow attackers to use statistical methods to obtain a valid HMAC for an attacker-controlled input value.\n\nJenkins 2.219, LTS 2.204.2 now uses a constant-time comparison when validating HMACs.","references":[{"reference_url":"https://access.redhat.com/errata/RHBA-2020:0402","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHBA-2020:0402"},{"reference_url":"https://access.redhat.com/errata/RHBA-2020:0675","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHBA-2020:0675"},{"reference_url":"https://access.redhat.com/errata/RHSA-2020:0681","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHSA-2020:0681"},{"reference_url":"https://access.redhat.com/errata/RHSA-2020:0683","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHSA-2020:0683"},{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-2102.json","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-2102.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2020-2102","reference_id":"","reference_type":"","scores":[{"value":"0.01523","scoring_system":"epss","scoring_elements":"0.8141","published_at":"2026-05-12T12:55:00Z"},{"value":"0.01523","scoring_system":"epss","scoring_elements":"0.81273","published_at":"2026-04-12T12:55:00Z"},{"value":"0.01523","scoring_system":"epss","scoring_elements":"0.81265","published_at":"2026-04-13T12:55:00Z"},{"value":"0.01523","scoring_system":"epss","scoring_elements":"0.81302","published_at":"2026-04-16T12:55:00Z"},{"value":"0.01523","scoring_system":"epss","scoring_elements":"0.81304","published_at":"2026-04-21T12:55:00Z"},{"value":"0.01523","scoring_system":"epss","scoring_elements":"0.81326","published_at":"2026-04-24T12:55:00Z"},{"value":"0.01523","scoring_system":"epss","scoring_elements":"0.81333","published_at":"2026-04-26T12:55:00Z"},{"value":"0.01523","scoring_system":"epss","scoring_elements":"0.81338","published_at":"2026-04-29T12:55:00Z"},{"value":"0.01523","scoring_system":"epss","scoring_elements":"0.81355","published_at":"2026-05-05T12:55:00Z"},{"value":"0.01523","scoring_system":"epss","scoring_elements":"0.81374","published_at":"2026-05-07T12:55:00Z"},{"value":"0.01523","scoring_system":"epss","scoring_elements":"0.81396","published_at":"2026-05-09T12:55:00Z"},{"value":"0.01523","scoring_system":"epss","scoring_elements":"0.81393","published_at":"2026-05-11T12:55:00Z"},{"value":"0.01523","scoring_system":"epss","scoring_elements":"0.81201","published_at":"2026-04-01T12:55:00Z"},{"value":"0.01523","scoring_system":"epss","scoring_elements":"0.8121","published_at":"2026-04-02T12:55:00Z"},{"value":"0.01523","scoring_system":"epss","scoring_elements":"0.81233","published_at":"2026-04-07T12:55:00Z"},{"value":"0.01523","scoring_system":"epss","scoring_elements":"0.81261","published_at":"2026-04-08T12:55:00Z"},{"value":"0.01523","scoring_system":"epss","scoring_elements":"0.81266","published_at":"2026-04-09T12:55:00Z"},{"value":"0.01523","scoring_system":"epss","scoring_elements":"0.81287","published_at":"2026-04-11T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2020-2102"},{"reference_url":"https://github.com/jenkinsci/jenkins","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/jenkinsci/jenkins"},{"reference_url":"https://github.com/jenkinsci/jenkins/commit/6f35dbb939ebe947bdb1979010b208480f1d0e31","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/jenkinsci/jenkins/commit/6f35dbb939ebe947bdb1979010b208480f1d0e31"},{"reference_url":"https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1660","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1660"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2102","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2102"},{"reference_url":"http://www.openwall.com/lists/oss-security/2020/01/29/1","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"http://www.openwall.com/lists/oss-security/2020/01/29/1"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=1797071","reference_id":"1797071","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1797071"},{"reference_url":"https://github.com/advisories/GHSA-fj6f-6933-839j","reference_id":"GHSA-fj6f-6933-839j","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-fj6f-6933-839j"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/82628?format=json","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core@2.204.2","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.204.2"},{"url":"http://public2.vulnerablecode.io/api/packages/82627?format=json","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core@2.219","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.219"}],"aliases":["CVE-2020-2102","GHSA-fj6f-6933-839j"],"risk_score":3.1,"exploitability":"0.5","weighted_severity":"6.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-s9rq-3bpy-83fu"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/55543?format=json","vulnerability_id":"VCID-sejb-9wh7-k7c4","summary":"Jenkins Diagnostic page exposed session cookies\nJenkins shows various technical details about the current user on the `/whoAmI` page. In [a previous fix](https://www.jenkins.io/security/advisory/2019-09-25/#SECURITY-1505), the `Cookie` header value containing the HTTP session ID was redacted. However, user metadata shown on this page could also include the HTTP session ID in Jenkins 2.218 and earlier, LTS 2.204.1 and earlier.\n\nThis allows attackers able to exploit a cross-site scripting vulnerability to obtain the HTTP session ID value from this page.\n\nJenkins 2.219, LTS 2.204.2 no longer prints out the affected user metadata that might contain the HTTP session ID.\n\nAdditionally, we also redact values of further authentication-related HTTP headers in addition to `Cookie` on this page as a hardening.","references":[{"reference_url":"https://access.redhat.com/errata/RHBA-2020:0402","reference_id":"","reference_type":"","scores":[{"value":"5.4","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHBA-2020:0402"},{"reference_url":"https://access.redhat.com/errata/RHBA-2020:0675","reference_id":"","reference_type":"","scores":[{"value":"5.4","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHBA-2020:0675"},{"reference_url":"https://access.redhat.com/errata/RHSA-2020:0681","reference_id":"","reference_type":"","scores":[{"value":"5.4","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHSA-2020:0681"},{"reference_url":"https://access.redhat.com/errata/RHSA-2020:0683","reference_id":"","reference_type":"","scores":[{"value":"5.4","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHSA-2020:0683"},{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-2103.json","reference_id":"","reference_type":"","scores":[{"value":"4.4","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-2103.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2020-2103","reference_id":"","reference_type":"","scores":[{"value":"0.45215","scoring_system":"epss","scoring_elements":"0.97631","published_at":"2026-05-12T12:55:00Z"},{"value":"0.45215","scoring_system":"epss","scoring_elements":"0.97595","published_at":"2026-04-09T12:55:00Z"},{"value":"0.45215","scoring_system":"epss","scoring_elements":"0.97597","published_at":"2026-04-11T12:55:00Z"},{"value":"0.45215","scoring_system":"epss","scoring_elements":"0.976","published_at":"2026-04-13T12:55:00Z"},{"value":"0.45215","scoring_system":"epss","scoring_elements":"0.97608","published_at":"2026-04-16T12:55:00Z"},{"value":"0.45215","scoring_system":"epss","scoring_elements":"0.97609","published_at":"2026-04-26T12:55:00Z"},{"value":"0.45215","scoring_system":"epss","scoring_elements":"0.9761","published_at":"2026-04-21T12:55:00Z"},{"value":"0.45215","scoring_system":"epss","scoring_elements":"0.97613","published_at":"2026-04-29T12:55:00Z"},{"value":"0.45215","scoring_system":"epss","scoring_elements":"0.9762","published_at":"2026-05-05T12:55:00Z"},{"value":"0.45215","scoring_system":"epss","scoring_elements":"0.97623","published_at":"2026-05-07T12:55:00Z"},{"value":"0.45215","scoring_system":"epss","scoring_elements":"0.97624","published_at":"2026-05-09T12:55:00Z"},{"value":"0.45215","scoring_system":"epss","scoring_elements":"0.97625","published_at":"2026-05-11T12:55:00Z"},{"value":"0.45215","scoring_system":"epss","scoring_elements":"0.97577","published_at":"2026-04-01T12:55:00Z"},{"value":"0.45215","scoring_system":"epss","scoring_elements":"0.97583","published_at":"2026-04-02T12:55:00Z"},{"value":"0.45215","scoring_system":"epss","scoring_elements":"0.97585","published_at":"2026-04-04T12:55:00Z"},{"value":"0.45215","scoring_system":"epss","scoring_elements":"0.97586","published_at":"2026-04-07T12:55:00Z"},{"value":"0.45215","scoring_system":"epss","scoring_elements":"0.97592","published_at":"2026-04-08T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2020-2103"},{"reference_url":"https://github.com/jenkinsci/jenkins","reference_id":"","reference_type":"","scores":[{"value":"5.4","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/jenkinsci/jenkins"},{"reference_url":"https://github.com/jenkinsci/jenkins/commit/77f36f37f5e3cabd0e4ece16d46d7943454ed15b","reference_id":"","reference_type":"","scores":[{"value":"5.4","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/jenkinsci/jenkins/commit/77f36f37f5e3cabd0e4ece16d46d7943454ed15b"},{"reference_url":"https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1695","reference_id":"","reference_type":"","scores":[{"value":"5.4","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1695"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2103","reference_id":"","reference_type":"","scores":[{"value":"5.4","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2103"},{"reference_url":"http://www.openwall.com/lists/oss-security/2020/01/29/1","reference_id":"","reference_type":"","scores":[{"value":"5.4","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"http://www.openwall.com/lists/oss-security/2020/01/29/1"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=1797062","reference_id":"1797062","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1797062"},{"reference_url":"https://github.com/advisories/GHSA-4jjj-cm7q-v6hr","reference_id":"GHSA-4jjj-cm7q-v6hr","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-4jjj-cm7q-v6hr"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/82628?format=json","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core@2.204.2","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.204.2"},{"url":"http://public2.vulnerablecode.io/api/packages/82627?format=json","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core@2.219","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.219"}],"aliases":["CVE-2020-2103","GHSA-4jjj-cm7q-v6hr"],"risk_score":3.1,"exploitability":"0.5","weighted_severity":"6.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-sejb-9wh7-k7c4"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/55599?format=json","vulnerability_id":"VCID-t8f3-q2yk-gqfk","summary":"Non-constant time comparison of inbound TCP agent connection secret\nJenkins 2.218 and earlier, LTS 2.204.1 and earlier does not use a constant-time comparison validating the connection secret when an inbound TCP agent connection is initiated. This could potentially allow attackers to use statistical methods to obtain the connection secret.\n\nJenkins 2.219, LTS 2.204.2 now uses a constant-time comparison function for verifying connection secrets.","references":[{"reference_url":"https://access.redhat.com/errata/RHBA-2020:0402","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHBA-2020:0402"},{"reference_url":"https://access.redhat.com/errata/RHBA-2020:0675","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHBA-2020:0675"},{"reference_url":"https://access.redhat.com/errata/RHSA-2020:0681","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHSA-2020:0681"},{"reference_url":"https://access.redhat.com/errata/RHSA-2020:0683","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHSA-2020:0683"},{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-2101.json","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-2101.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2020-2101","reference_id":"","reference_type":"","scores":[{"value":"0.01645","scoring_system":"epss","scoring_elements":"0.82121","published_at":"2026-05-12T12:55:00Z"},{"value":"0.01645","scoring_system":"epss","scoring_elements":"0.81973","published_at":"2026-04-12T12:55:00Z"},{"value":"0.01645","scoring_system":"epss","scoring_elements":"0.81968","published_at":"2026-04-13T12:55:00Z"},{"value":"0.01645","scoring_system":"epss","scoring_elements":"0.82003","published_at":"2026-04-18T12:55:00Z"},{"value":"0.01645","scoring_system":"epss","scoring_elements":"0.82005","published_at":"2026-04-21T12:55:00Z"},{"value":"0.01645","scoring_system":"epss","scoring_elements":"0.82028","published_at":"2026-04-24T12:55:00Z"},{"value":"0.01645","scoring_system":"epss","scoring_elements":"0.82039","published_at":"2026-04-26T12:55:00Z"},{"value":"0.01645","scoring_system":"epss","scoring_elements":"0.82044","published_at":"2026-04-29T12:55:00Z"},{"value":"0.01645","scoring_system":"epss","scoring_elements":"0.82062","published_at":"2026-05-05T12:55:00Z"},{"value":"0.01645","scoring_system":"epss","scoring_elements":"0.82083","published_at":"2026-05-07T12:55:00Z"},{"value":"0.01645","scoring_system":"epss","scoring_elements":"0.82108","published_at":"2026-05-09T12:55:00Z"},{"value":"0.01645","scoring_system":"epss","scoring_elements":"0.82104","published_at":"2026-05-11T12:55:00Z"},{"value":"0.01645","scoring_system":"epss","scoring_elements":"0.819","published_at":"2026-04-01T12:55:00Z"},{"value":"0.01645","scoring_system":"epss","scoring_elements":"0.81912","published_at":"2026-04-02T12:55:00Z"},{"value":"0.01645","scoring_system":"epss","scoring_elements":"0.81934","published_at":"2026-04-04T12:55:00Z"},{"value":"0.01645","scoring_system":"epss","scoring_elements":"0.81931","published_at":"2026-04-07T12:55:00Z"},{"value":"0.01645","scoring_system":"epss","scoring_elements":"0.81957","published_at":"2026-04-08T12:55:00Z"},{"value":"0.01645","scoring_system":"epss","scoring_elements":"0.81965","published_at":"2026-04-09T12:55:00Z"},{"value":"0.01645","scoring_system":"epss","scoring_elements":"0.81984","published_at":"2026-04-11T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2020-2101"},{"reference_url":"https://github.com/jenkinsci/jenkins","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/jenkinsci/jenkins"},{"reference_url":"https://github.com/jenkinsci/jenkins/commit/0ba36508187ff771bba87feaf03057496775064c","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/jenkinsci/jenkins/commit/0ba36508187ff771bba87feaf03057496775064c"},{"reference_url":"https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1659","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1659"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2101","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2101"},{"reference_url":"http://www.openwall.com/lists/oss-security/2020/01/29/1","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"http://www.openwall.com/lists/oss-security/2020/01/29/1"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=1797084","reference_id":"1797084","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1797084"},{"reference_url":"https://github.com/advisories/GHSA-w7jr-wqw6-54xc","reference_id":"GHSA-w7jr-wqw6-54xc","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-w7jr-wqw6-54xc"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/82628?format=json","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core@2.204.2","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.204.2"},{"url":"http://public2.vulnerablecode.io/api/packages/82627?format=json","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core@2.219","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.219"}],"aliases":["CVE-2020-2101","GHSA-w7jr-wqw6-54xc"],"risk_score":3.1,"exploitability":"0.5","weighted_severity":"6.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-t8f3-q2yk-gqfk"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/55636?format=json","vulnerability_id":"VCID-urd7-cve7-dqdk","summary":"Inbound TCP Agent Protocol/3 authentication bypass in Jenkins\nJenkins 2.213 and earlier, LTS 2.204.1 and earlier includes support for the Inbound TCP Agent Protocol/3 for communication between controller and agents. While [this protocol has been deprecated in 2018](https://www.jenkins.io/changelog-old/#v2.128) and was recently removed from Jenkins in 2.214, it could still easily be enabled in Jenkins LTS 2.204.1, 2.213, and older.\n\nThis protocol incorrectly reuses encryption parameters which allow an unauthenticated remote attacker to determine the connection secret. This secret can then be used to connect attacker-controlled Jenkins agents to the Jenkins controller.\n\nJenkins 2.204.2 no longer allows for the use of Inbound TCP Agent Protocol/3 by default. The system property `jenkins.slaves.JnlpSlaveAgentProtocol3.ALLOW_UNSAFE` can be set to `true` to allow enabling the Inbound TCP Agent Protocol/3 in Jenkins 2.204.2, but doing so is strongly discouraged.\n\nInbound TCP Agent Protocol/3 was removed completely from Jenkins 2.214 and will not be part of Jenkins LTS after the end of the 2.204.x line.","references":[{"reference_url":"https://access.redhat.com/errata/RHBA-2020:0402","reference_id":"","reference_type":"","scores":[{"value":"8.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHBA-2020:0402"},{"reference_url":"https://access.redhat.com/errata/RHBA-2020:0675","reference_id":"","reference_type":"","scores":[{"value":"8.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHBA-2020:0675"},{"reference_url":"https://access.redhat.com/errata/RHSA-2020:0681","reference_id":"","reference_type":"","scores":[{"value":"8.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHSA-2020:0681"},{"reference_url":"https://access.redhat.com/errata/RHSA-2020:0683","reference_id":"","reference_type":"","scores":[{"value":"8.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://access.redhat.com/errata/RHSA-2020:0683"},{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-2099.json","reference_id":"","reference_type":"","scores":[{"value":"8.6","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-2099.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2020-2099","reference_id":"","reference_type":"","scores":[{"value":"0.00643","scoring_system":"epss","scoring_elements":"0.70783","published_at":"2026-05-12T12:55:00Z"},{"value":"0.00643","scoring_system":"epss","scoring_elements":"0.70636","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00643","scoring_system":"epss","scoring_elements":"0.70681","published_at":"2026-04-16T12:55:00Z"},{"value":"0.00643","scoring_system":"epss","scoring_elements":"0.70689","published_at":"2026-04-18T12:55:00Z"},{"value":"0.00643","scoring_system":"epss","scoring_elements":"0.70668","published_at":"2026-04-21T12:55:00Z"},{"value":"0.00643","scoring_system":"epss","scoring_elements":"0.70721","published_at":"2026-04-24T12:55:00Z"},{"value":"0.00643","scoring_system":"epss","scoring_elements":"0.70731","published_at":"2026-04-26T12:55:00Z"},{"value":"0.00643","scoring_system":"epss","scoring_elements":"0.7073","published_at":"2026-04-29T12:55:00Z"},{"value":"0.00643","scoring_system":"epss","scoring_elements":"0.70711","published_at":"2026-05-05T12:55:00Z"},{"value":"0.00643","scoring_system":"epss","scoring_elements":"0.70751","published_at":"2026-05-07T12:55:00Z"},{"value":"0.00643","scoring_system":"epss","scoring_elements":"0.70788","published_at":"2026-05-09T12:55:00Z"},{"value":"0.00643","scoring_system":"epss","scoring_elements":"0.70755","published_at":"2026-05-11T12:55:00Z"},{"value":"0.00643","scoring_system":"epss","scoring_elements":"0.70574","published_at":"2026-04-01T12:55:00Z"},{"value":"0.00643","scoring_system":"epss","scoring_elements":"0.70587","published_at":"2026-04-02T12:55:00Z"},{"value":"0.00643","scoring_system":"epss","scoring_elements":"0.70603","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00643","scoring_system":"epss","scoring_elements":"0.70581","published_at":"2026-04-07T12:55:00Z"},{"value":"0.00643","scoring_system":"epss","scoring_elements":"0.70626","published_at":"2026-04-08T12:55:00Z"},{"value":"0.00643","scoring_system":"epss","scoring_elements":"0.70642","published_at":"2026-04-09T12:55:00Z"},{"value":"0.00643","scoring_system":"epss","scoring_elements":"0.70665","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00643","scoring_system":"epss","scoring_elements":"0.7065","published_at":"2026-04-12T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2020-2099"},{"reference_url":"https://github.com/jenkinsci/jenkins","reference_id":"","reference_type":"","scores":[{"value":"8.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/jenkinsci/jenkins"},{"reference_url":"https://github.com/jenkinsci/jenkins/commit/5054bc6e12e1022993d719f66e289ab1d22ae854","reference_id":"","reference_type":"","scores":[{"value":"8.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/jenkinsci/jenkins/commit/5054bc6e12e1022993d719f66e289ab1d22ae854"},{"reference_url":"https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1682","reference_id":"","reference_type":"","scores":[{"value":"8.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1682"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2099","reference_id":"","reference_type":"","scores":[{"value":"8.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2099"},{"reference_url":"http://www.openwall.com/lists/oss-security/2020/01/29/1","reference_id":"","reference_type":"","scores":[{"value":"8.6","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"http://www.openwall.com/lists/oss-security/2020/01/29/1"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=1797080","reference_id":"1797080","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1797080"},{"reference_url":"https://github.com/advisories/GHSA-qp4f-2w67-c8hw","reference_id":"GHSA-qp4f-2w67-c8hw","reference_type":"","scores":[{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-qp4f-2w67-c8hw"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/82628?format=json","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core@2.204.2","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.204.2"},{"url":"http://public2.vulnerablecode.io/api/packages/82681?format=json","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core@2.214","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.214"},{"url":"http://public2.vulnerablecode.io/api/packages/82627?format=json","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core@2.219","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.219"}],"aliases":["CVE-2020-2099","GHSA-qp4f-2w67-c8hw"],"risk_score":4.0,"exploitability":"0.5","weighted_severity":"8.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-urd7-cve7-dqdk"}],"risk_score":null,"resource_url":"http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.204.2"}