Medium severity6.5NVD Advisory· Published Mar 18, 2021· Updated Jun 17, 2026
CVE-2021-21623
CVE-2021-21623
Description
An incorrect permission check in Jenkins Matrix Authorization Strategy Plugin 2.6.5 and earlier allows attackers with Item/Read permission on nested items to access them, even if they lack Item/Read permission for parent folders.
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.plugins:matrix-authMaven | < 2.6.6 | 2.6.6 |
Affected products
3cpe:2.3:a:jenkins:matrix_authorization_strategy:*:*:*:*:*:jenkins:*:*+ 1 more
- cpe:2.3:a:jenkins:matrix_authorization_strategy:*:*:*:*:*:jenkins:*:*range: <=2.6.5
- (no CPE)range: unspecified
Patches
Vulnerability mechanics
References
5- www.openwall.com/lists/oss-security/2021/03/18/5nvdMailing ListThird Party AdvisoryWEB
- github.com/advisories/GHSA-96jw-3xw4-mq9pghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-21623ghsaADVISORY
- www.jenkins.io/security/advisory/2021-03-18/nvdVendor AdvisoryWEB
- github.com/jenkinsci/matrix-auth-plugin/commit/bbe358575155912b818ab3c6e8b9623f21ad3418ghsaWEB
News mentions
1- Jenkins Security Advisory 2021-03-18Jenkins Security Advisories · Mar 18, 2021