High severity7.5NVD Advisory· Published Nov 4, 2021· Updated Jun 17, 2026
CVE-2021-21688
CVE-2021-21688
Description
The agent-to-controller security check FilePath#reading(FileVisitor) in Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not reject any operations, allowing users to have unrestricted read access using certain operations (creating archives, FilePath#copyRecursiveTo).
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 | < 2.303.3 | 2.303.3 |
org.jenkins-ci.main:jenkins-coreMaven | >= 2.304, < 2.319 | 2.319 |
Affected products
5cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*+ 2 more
- cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*range: <2.319
- cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*range: <2.303.3
- (no CPE)range: unspecified
- osv-coords2 versions
< 2.319.0+ 1 more
- (no CPE)range: < 2.319.0
- (no CPE)range: < 2.303.3
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-m9hr-259f-2v23ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-21688ghsaADVISORY
- www.jenkins.io/security/advisory/2021-11-04/nvdVendor AdvisoryWEB
- github.com/jenkinsci/jenkins/commit/104c751d907919dd53f5090f84d53c671a66457bghsaWEB
- github.com/jenkinsci/jenkins/commit/5a245e42979abe4a26d41727c839521e36cedd74ghsaWEB
- github.com/jenkinsci/jenkins/commit/63cde2daadc705edf086f2213b48c8c547f98358ghsaWEB
News mentions
1- Jenkins Security Advisory 2021-11-04Jenkins Security Advisories · Nov 4, 2021