Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/11491?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/11491?format=api", "vulnerability_id": "VCID-b4zg-38x9-23dn", "summary": "Missing Authorization\nJenkins does not check agent-to-controller access to create symbolic links when unarchiving a symbolic link in FilePath#untar.", "aliases": [ { "alias": "CVE-2021-21687" }, { "alias": "GHSA-3q84-vrvx-rfvf" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/371167?format=api", "purl": "pkg:alpm/archlinux/jenkins@2.319-1", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:alpm/archlinux/jenkins@2.319-1" }, { "url": "http://public2.vulnerablecode.io/api/packages/41249?format=api", "purl": "pkg:maven/org.jenkins-ci.main/jenkins-core@2.303.3", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1kf2-8j67-7kg3" }, { "vulnerability": "VCID-7w87-bm8n-bbbr" }, { "vulnerability": "VCID-b4zg-38x9-23dn" }, { "vulnerability": "VCID-fvza-3rhj-8kbp" }, { "vulnerability": "VCID-h3nf-gwsr-5qf3" }, { "vulnerability": "VCID-kf3a-yce1-auh4" }, { "vulnerability": "VCID-nq1x-s9hz-a7fb" }, { "vulnerability": "VCID-r3ry-745m-zuh1" }, { "vulnerability": "VCID-r3v1-qkky-dqcq" }, { "vulnerability": "VCID-remx-jas5-1bfm" }, { "vulnerability": "VCID-wuvf-kdtu-tkc2" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.303.3" }, { "url": "http://public2.vulnerablecode.io/api/packages/41250?format=api", "purl": "pkg:maven/org.jenkins-ci.main/jenkins-core@2.319", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.319" } ], "affected_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/371166?format=api", "purl": "pkg:alpm/archlinux/jenkins@2.318-1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1kf2-8j67-7kg3" }, { "vulnerability": "VCID-53km-desw-w7d6" }, { "vulnerability": "VCID-7w87-bm8n-bbbr" }, { "vulnerability": "VCID-b4zg-38x9-23dn" }, { "vulnerability": "VCID-fvza-3rhj-8kbp" }, { "vulnerability": "VCID-h3nf-gwsr-5qf3" }, { "vulnerability": "VCID-kf3a-yce1-auh4" }, { "vulnerability": "VCID-nq1x-s9hz-a7fb" }, { "vulnerability": "VCID-r3ry-745m-zuh1" }, { "vulnerability": "VCID-r3v1-qkky-dqcq" }, { "vulnerability": "VCID-remx-jas5-1bfm" }, { "vulnerability": "VCID-wuvf-kdtu-tkc2" }, { "vulnerability": "VCID-zgtd-8mf6-ruc9" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:alpm/archlinux/jenkins@2.318-1" }, { "url": "http://public2.vulnerablecode.io/api/packages/41247?format=api", "purl": "pkg:maven/org.jenkins-ci.main/jenkins-core@2.303.2", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-53km-desw-w7d6" }, { "vulnerability": "VCID-7w87-bm8n-bbbr" }, { "vulnerability": "VCID-b4zg-38x9-23dn" }, { "vulnerability": "VCID-fvza-3rhj-8kbp" }, { "vulnerability": "VCID-h3nf-gwsr-5qf3" }, { "vulnerability": "VCID-kf3a-yce1-auh4" }, { "vulnerability": "VCID-remx-jas5-1bfm" }, { "vulnerability": "VCID-zgtd-8mf6-ruc9" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.303.2" }, { "url": "http://public2.vulnerablecode.io/api/packages/41249?format=api", "purl": "pkg:maven/org.jenkins-ci.main/jenkins-core@2.303.3", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1kf2-8j67-7kg3" }, { "vulnerability": "VCID-7w87-bm8n-bbbr" }, { "vulnerability": "VCID-b4zg-38x9-23dn" }, { "vulnerability": "VCID-fvza-3rhj-8kbp" }, { "vulnerability": "VCID-h3nf-gwsr-5qf3" }, { "vulnerability": "VCID-kf3a-yce1-auh4" }, { "vulnerability": "VCID-nq1x-s9hz-a7fb" }, { "vulnerability": "VCID-r3ry-745m-zuh1" }, { "vulnerability": "VCID-r3v1-qkky-dqcq" }, { "vulnerability": "VCID-remx-jas5-1bfm" }, { "vulnerability": "VCID-wuvf-kdtu-tkc2" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.303.3" }, { "url": "http://public2.vulnerablecode.io/api/packages/143888?format=api", "purl": "pkg:maven/org.jenkins-ci.main/jenkins-core@2.304", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1kf2-8j67-7kg3" }, { "vulnerability": "VCID-4m6t-zty2-b3d6" }, { "vulnerability": "VCID-53km-desw-w7d6" }, { "vulnerability": "VCID-7w87-bm8n-bbbr" }, { "vulnerability": "VCID-b4zg-38x9-23dn" }, { "vulnerability": "VCID-fvza-3rhj-8kbp" }, { "vulnerability": "VCID-h3nf-gwsr-5qf3" }, { "vulnerability": "VCID-kf3a-yce1-auh4" }, { "vulnerability": "VCID-nq1x-s9hz-a7fb" }, { "vulnerability": "VCID-r3ry-745m-zuh1" }, { "vulnerability": "VCID-r3v1-qkky-dqcq" }, { "vulnerability": "VCID-remx-jas5-1bfm" }, { "vulnerability": "VCID-tdb7-6gx7-1ucr" }, { "vulnerability": "VCID-wuvf-kdtu-tkc2" }, { "vulnerability": "VCID-zgtd-8mf6-ruc9" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.304" }, { "url": "http://public2.vulnerablecode.io/api/packages/41248?format=api", "purl": "pkg:maven/org.jenkins-ci.main/jenkins-core@2.318", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1kf2-8j67-7kg3" }, { "vulnerability": "VCID-53km-desw-w7d6" }, { "vulnerability": "VCID-7w87-bm8n-bbbr" }, { "vulnerability": "VCID-b4zg-38x9-23dn" }, { "vulnerability": "VCID-fvza-3rhj-8kbp" }, { "vulnerability": "VCID-h3nf-gwsr-5qf3" }, { "vulnerability": "VCID-kf3a-yce1-auh4" }, { "vulnerability": "VCID-nq1x-s9hz-a7fb" }, { "vulnerability": "VCID-r3ry-745m-zuh1" }, { "vulnerability": "VCID-r3v1-qkky-dqcq" }, { "vulnerability": "VCID-remx-jas5-1bfm" }, { "vulnerability": "VCID-wuvf-kdtu-tkc2" }, { "vulnerability": "VCID-zgtd-8mf6-ruc9" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:maven/org.jenkins-ci.main/jenkins-core@2.318" }, { "url": "http://public2.vulnerablecode.io/api/packages/99829?format=api", "purl": "pkg:rpm/redhat/jenkins@2.303.3.1637595827-1?arch=el8", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1kf2-8j67-7kg3" }, { "vulnerability": "VCID-53km-desw-w7d6" }, { "vulnerability": "VCID-7w87-bm8n-bbbr" }, { "vulnerability": "VCID-b4zg-38x9-23dn" }, { "vulnerability": "VCID-fvza-3rhj-8kbp" }, { "vulnerability": "VCID-h3nf-gwsr-5qf3" }, { "vulnerability": "VCID-kf3a-yce1-auh4" }, { "vulnerability": "VCID-nq1x-s9hz-a7fb" }, { "vulnerability": "VCID-r3ry-745m-zuh1" }, { "vulnerability": "VCID-r3v1-qkky-dqcq" }, { "vulnerability": "VCID-remx-jas5-1bfm" }, { "vulnerability": "VCID-wuvf-kdtu-tkc2" }, { "vulnerability": "VCID-zgtd-8mf6-ruc9" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:rpm/redhat/jenkins@2.303.3.1637595827-1%3Farch=el8" }, { "url": "http://public2.vulnerablecode.io/api/packages/99827?format=api", "purl": "pkg:rpm/redhat/jenkins@2.303.3.1637596565-1?arch=el8", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1kf2-8j67-7kg3" }, { "vulnerability": "VCID-53km-desw-w7d6" }, { "vulnerability": "VCID-7w87-bm8n-bbbr" }, { "vulnerability": "VCID-b4zg-38x9-23dn" }, { "vulnerability": "VCID-fvza-3rhj-8kbp" }, { "vulnerability": "VCID-h3nf-gwsr-5qf3" }, { "vulnerability": "VCID-kf3a-yce1-auh4" }, { "vulnerability": "VCID-nq1x-s9hz-a7fb" }, { "vulnerability": "VCID-r3ry-745m-zuh1" }, { "vulnerability": "VCID-r3v1-qkky-dqcq" }, { "vulnerability": "VCID-remx-jas5-1bfm" }, { "vulnerability": "VCID-wuvf-kdtu-tkc2" }, { "vulnerability": "VCID-zgtd-8mf6-ruc9" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:rpm/redhat/jenkins@2.303.3.1637596565-1%3Farch=el8" }, { "url": "http://public2.vulnerablecode.io/api/packages/99826?format=api", "purl": "pkg:rpm/redhat/jenkins@2.303.3.1637597018-1?arch=el8", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1kf2-8j67-7kg3" }, { "vulnerability": "VCID-53km-desw-w7d6" }, { "vulnerability": "VCID-7w87-bm8n-bbbr" }, { "vulnerability": "VCID-b4zg-38x9-23dn" }, { "vulnerability": "VCID-fvza-3rhj-8kbp" }, { "vulnerability": "VCID-h3nf-gwsr-5qf3" }, { "vulnerability": "VCID-kf3a-yce1-auh4" }, { "vulnerability": "VCID-nq1x-s9hz-a7fb" }, { "vulnerability": "VCID-r3ry-745m-zuh1" }, { "vulnerability": "VCID-r3v1-qkky-dqcq" }, { "vulnerability": "VCID-remx-jas5-1bfm" }, { "vulnerability": "VCID-wuvf-kdtu-tkc2" }, { "vulnerability": "VCID-zgtd-8mf6-ruc9" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:rpm/redhat/jenkins@2.303.3.1637597018-1%3Farch=el8" }, { "url": "http://public2.vulnerablecode.io/api/packages/99828?format=api", "purl": "pkg:rpm/redhat/jenkins@2.303.3.1637597493-1?arch=el8", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1kf2-8j67-7kg3" }, { "vulnerability": "VCID-53km-desw-w7d6" }, { "vulnerability": "VCID-7w87-bm8n-bbbr" }, { "vulnerability": "VCID-b4zg-38x9-23dn" }, { "vulnerability": "VCID-fvza-3rhj-8kbp" }, { "vulnerability": "VCID-h3nf-gwsr-5qf3" }, { "vulnerability": "VCID-kf3a-yce1-auh4" }, { "vulnerability": "VCID-nq1x-s9hz-a7fb" }, { "vulnerability": "VCID-r3ry-745m-zuh1" }, { "vulnerability": "VCID-r3v1-qkky-dqcq" }, { "vulnerability": "VCID-remx-jas5-1bfm" }, { "vulnerability": "VCID-wuvf-kdtu-tkc2" }, { "vulnerability": "VCID-zgtd-8mf6-ruc9" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:rpm/redhat/jenkins@2.303.3.1637597493-1%3Farch=el8" }, { "url": "http://public2.vulnerablecode.io/api/packages/99830?format=api", "purl": "pkg:rpm/redhat/jenkins@2.303.3.1637698110-1?arch=el7", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1kf2-8j67-7kg3" }, { "vulnerability": "VCID-53km-desw-w7d6" }, { "vulnerability": "VCID-7w87-bm8n-bbbr" }, { "vulnerability": "VCID-b4zg-38x9-23dn" }, { "vulnerability": "VCID-fvza-3rhj-8kbp" }, { "vulnerability": "VCID-h3nf-gwsr-5qf3" }, { "vulnerability": "VCID-kf3a-yce1-auh4" }, { "vulnerability": "VCID-nq1x-s9hz-a7fb" }, { "vulnerability": "VCID-r3ry-745m-zuh1" }, { "vulnerability": "VCID-r3v1-qkky-dqcq" }, { "vulnerability": "VCID-remx-jas5-1bfm" }, { "vulnerability": "VCID-wuvf-kdtu-tkc2" }, { "vulnerability": "VCID-zgtd-8mf6-ruc9" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:rpm/redhat/jenkins@2.303.3.1637698110-1%3Farch=el7" } ], "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-21687.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "9.0", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-21687.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-21687", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00271", "scoring_system": "epss", "scoring_elements": "0.50579", "published_at": "2026-04-24T12:55:00Z" }, { "value": "0.00271", "scoring_system": "epss", "scoring_elements": "0.50603", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.00271", "scoring_system": "epss", "scoring_elements": "0.506", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.00271", "scoring_system": "epss", "scoring_elements": "0.50642", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.00271", "scoring_system": "epss", "scoring_elements": "0.50619", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.00271", "scoring_system": "epss", "scoring_elements": "0.50605", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.00271", "scoring_system": "epss", "scoring_elements": "0.50646", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.00271", "scoring_system": "epss", "scoring_elements": "0.50652", "published_at": "2026-04-18T12:55:00Z" }, { "value": "0.00271", "scoring_system": "epss", "scoring_elements": "0.50631", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.00271", "scoring_system": "epss", "scoring_elements": "0.50511", "published_at": "2026-04-01T12:55:00Z" }, { "value": "0.00271", "scoring_system": "epss", "scoring_elements": "0.50568", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.00271", "scoring_system": "epss", "scoring_elements": "0.50596", "published_at": "2026-04-04T12:55:00Z" }, { "value": "0.00271", "scoring_system": "epss", "scoring_elements": "0.50548", "published_at": "2026-04-07T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-21687" }, { "reference_url": "https://github.com/jenkinsci/jenkins", "reference_id": "", "reference_type": "", "scores": [ { "value": "9.0", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H" }, { "value": "CRITICAL", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/jenkinsci/jenkins" }, { "reference_url": "https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455", "reference_id": "", "reference_type": "", "scores": [ { "value": "9.0", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H" }, { "value": "CRITICAL", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=2020324", "reference_id": "2020324", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2020324" }, { "reference_url": "https://security.archlinux.org/ASA-202111-1", "reference_id": "ASA-202111-1", "reference_type": "", "scores": [], "url": "https://security.archlinux.org/ASA-202111-1" }, { "reference_url": "https://security.archlinux.org/AVG-2526", "reference_id": "AVG-2526", "reference_type": "", "scores": [ { "value": "Critical", "scoring_system": "archlinux", "scoring_elements": "" } ], "url": "https://security.archlinux.org/AVG-2526" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21687", "reference_id": "CVE-2021-21687", "reference_type": "", "scores": [ { "value": "9.0", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H" }, { "value": "CRITICAL", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21687" }, { "reference_url": "https://github.com/advisories/GHSA-3q84-vrvx-rfvf", "reference_id": "GHSA-3q84-vrvx-rfvf", "reference_type": "", "scores": [ { "value": "CRITICAL", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-3q84-vrvx-rfvf" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2021:4799", "reference_id": "RHSA-2021:4799", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2021:4799" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2021:4801", "reference_id": "RHSA-2021:4801", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2021:4801" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2021:4827", "reference_id": "RHSA-2021:4827", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2021:4827" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2021:4829", "reference_id": "RHSA-2021:4829", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2021:4829" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2021:4833", "reference_id": "RHSA-2021:4833", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2021:4833" } ], "weaknesses": [ { "cwe_id": 1035, "name": "OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities", "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2017." }, { "cwe_id": 862, "name": "Missing Authorization", "description": "The product does not perform an authorization check when an actor attempts to access a resource or perform an action." }, { "cwe_id": 937, "name": "OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities", "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2013." }, { "cwe_id": 59, "name": "Improper Link Resolution Before File Access ('Link Following')", "description": "The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource." } ], "exploits": [], "severity_range_score": "9.0 - 10.0", "exploitability": "0.5", "weighted_severity": "9.0", "risk_score": 4.5, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-b4zg-38x9-23dn" }