CVSS 3.1
9.1 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NCVE-2021-21687
Critical (9.1) in jenkins jenkins. EPSS 1.4% chance of exploitation in the next 30 days. Fixed in org.jenkins-ci.main:jenkins-core 2.303.3, 2.319.
Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not check agent-to-controller access to create symbolic links when unarchiving a symbolic link in FilePath#untar.
Severity
- EPSS
- 1.4% chance of exploitation in the next 30 days; higher than 72% of CVEs (scores of 2026-10-31)
- CWE
- CWE-862
- Published
- Modified
- Record from
- the NVD, synced
Affected
- jenkins:jenkins
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-3q84-vrvx-rfvf | Maven | org.jenkins-ci.main:jenkins-core | <2.303.3 | 2.303.3 |
| GHSA-3q84-vrvx-rfvf | Maven | org.jenkins-ci.main:jenkins-core | >=2.304 <2.319 | 2.319 |