CVE-2021-21623

MediumCVSS 6.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-863

Affected software

Vendor	Product	Versions
Jenkins project	Jenkins Matrix Authorization Strategy Plugin	>= unspecified, <= 2.6.5

References

http://www.openwall.com/lists/oss-security/2021/03/18/5Mailing List, Third Party Advisory
https://www.jenkins.io/security/advisory/2021-03-18/#SECURITY-2180Vendor Advisory
http://www.openwall.com/lists/oss-security/2021/03/18/5Mailing List, Third Party Advisory
https://www.jenkins.io/security/advisory/2021-03-18/#SECURITY-2180Vendor Advisory

Timeline

Published: Mar 18, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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