Medium severity6.5NVD Advisory· Published Oct 6, 2021· Updated Jun 17, 2026
CVE-2021-21683
CVE-2021-21683
Description
The file browser in Jenkins 2.314 and earlier, LTS 2.303.1 and earlier may interpret some paths to files as absolute on Windows, resulting in a path traversal vulnerability allowing attackers with Overall/Read permission (Windows controller) or Job/Workspace permission (Windows agents) to obtain the contents of arbitrary files.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.jenkins-ci.main:jenkins-coreMaven | < 2.303.2 | 2.303.2 |
org.jenkins-ci.main:jenkins-coreMaven | >= 2.304, < 2.315 | 2.315 |
Affected products
5cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*+ 2 more
- cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*range: <=2.314
- cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*range: <=2.303.1
- (no CPE)range: unspecified
- osv-coords2 versions
< 2.314.1+ 1 more
- (no CPE)range: < 2.314.1
- (no CPE)range: < 2.303.2
Patches
Vulnerability mechanics
References
5- www.openwall.com/lists/oss-security/2021/10/06/1nvdMailing ListThird Party AdvisoryWEB
- github.com/advisories/GHSA-4pw5-r58h-fv24ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-21683ghsaADVISORY
- www.jenkins.io/security/advisory/2021-10-06/nvdVendor AdvisoryWEB
- github.com/jenkinsci/jenkins/commit/3f679fc12d073676a4441d3fa8b5fff34c07662fghsaWEB
News mentions
1- Jenkins Security Advisory 2021-10-06Jenkins Security Advisories · Oct 6, 2021