{"url":"http://public2.vulnerablecode.io/api/packages/82672?format=json","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core@2.276","type":"maven","namespace":"org.jenkins-ci.main","name":"jenkins-core","version":"2.276","qualifiers":{},"subpath":"","is_vulnerable":false,"next_non_vulnerable_version":"2.277.2","latest_non_vulnerable_version":"2.555","affected_by_vulnerabilities":[],"fixing_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/55622?format=json","vulnerability_id":"VCID-evt5-t9pq-n7a7","summary":"Time-of-check Time-of-use (TOCTOU) Race Condition in Jenkins\nDue to a time-of-check to time-of-use (TOCTOU) race condition, the file browser for workspaces, archived artifacts, and `$JENKINS_HOME/userContent/` follows symbolic links to locations outside the directory being browsed in Jenkins 2.275 and LTS 2.263.2.\n\nThis allows attackers with Job/Workspace permission and the ability to control workspace contents, e.g., with Job/Configure permission or the ability to change SCM contents, to create symbolic links that allow them to access files outside workspaces using the workspace browser.\n\nThis issue is caused by an incorrectly applied fix for SECURITY-1452 / CVE-2021-21602 in the [2021-01-13 security advisory](https://www.jenkins.io/security/advisory/2021-01-13/#SECURITY-1452).\n\nJenkins 2.276, LTS 2.263.3 no longer differentiates the check and the use of symlinks in workspace browsers.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-21615.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-2021-21615.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-21615","reference_id":"","reference_type":"","scores":[{"value":"0.00436","scoring_system":"epss","scoring_elements":"0.63104","published_at":"2026-05-12T12:55:00Z"},{"value":"0.00436","scoring_system":"epss","scoring_elements":"0.63026","published_at":"2026-04-21T12:55:00Z"},{"value":"0.00436","scoring_system":"epss","scoring_elements":"0.63047","published_at":"2026-04-24T12:55:00Z"},{"value":"0.00436","scoring_system":"epss","scoring_elements":"0.63061","published_at":"2026-04-26T12:55:00Z"},{"value":"0.00436","scoring_system":"epss","scoring_elements":"0.6306","published_at":"2026-04-29T12:55:00Z"},{"value":"0.00436","scoring_system":"epss","scoring_elements":"0.63015","published_at":"2026-05-05T12:55:00Z"},{"value":"0.00436","scoring_system":"epss","scoring_elements":"0.63062","published_at":"2026-05-07T12:55:00Z"},{"value":"0.00436","scoring_system":"epss","scoring_elements":"0.63114","published_at":"2026-05-09T12:55:00Z"},{"value":"0.00436","scoring_system":"epss","scoring_elements":"0.63076","published_at":"2026-05-11T12:55:00Z"},{"value":"0.00436","scoring_system":"epss","scoring_elements":"0.62902","published_at":"2026-04-01T12:55:00Z"},{"value":"0.00436","scoring_system":"epss","scoring_elements":"0.62961","published_at":"2026-04-02T12:55:00Z"},{"value":"0.00436","scoring_system":"epss","scoring_elements":"0.6299","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00436","scoring_system":"epss","scoring_elements":"0.62954","published_at":"2026-04-07T12:55:00Z"},{"value":"0.00436","scoring_system":"epss","scoring_elements":"0.63006","published_at":"2026-04-08T12:55:00Z"},{"value":"0.00436","scoring_system":"epss","scoring_elements":"0.63022","published_at":"2026-04-09T12:55:00Z"},{"value":"0.00436","scoring_system":"epss","scoring_elements":"0.63039","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00436","scoring_system":"epss","scoring_elements":"0.63025","published_at":"2026-04-12T12:55:00Z"},{"value":"0.00436","scoring_system":"epss","scoring_elements":"0.63003","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00436","scoring_system":"epss","scoring_elements":"0.6304","published_at":"2026-04-16T12:55:00Z"},{"value":"0.00436","scoring_system":"epss","scoring_elements":"0.63048","published_at":"2026-04-18T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-21615"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21615","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/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-2021-21615"},{"reference_url":"https://www.jenkins.io/security/advisory/2021-01-26/#SECURITY-2197","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/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://www.jenkins.io/security/advisory/2021-01-26/#SECURITY-2197"},{"reference_url":"http://www.openwall.com/lists/oss-security/2021/01/26/2","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/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/2021/01/26/2"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=1921322","reference_id":"1921322","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1921322"},{"reference_url":"https://security.archlinux.org/AVG-1491","reference_id":"AVG-1491","reference_type":"","scores":[{"value":"Medium","scoring_system":"archlinux","scoring_elements":""}],"url":"https://security.archlinux.org/AVG-1491"},{"reference_url":"https://github.com/advisories/GHSA-qxp6-27gw-99cj","reference_id":"GHSA-qxp6-27gw-99cj","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-qxp6-27gw-99cj"},{"reference_url":"https://access.redhat.com/errata/RHSA-2021:0423","reference_id":"RHSA-2021:0423","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2021:0423"},{"reference_url":"https://access.redhat.com/errata/RHSA-2021:0429","reference_id":"RHSA-2021:0429","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2021:0429"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/82671?format=json","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core@2.263.3","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-evt5-t9pq-n7a7"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.263.3"},{"url":"http://public2.vulnerablecode.io/api/packages/82672?format=json","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core@2.276","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.276"}],"aliases":["CVE-2021-21615","GHSA-qxp6-27gw-99cj"],"risk_score":3.1,"exploitability":"0.5","weighted_severity":"6.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-evt5-t9pq-n7a7"}],"risk_score":null,"resource_url":"http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.276"}