Jenkins 2.554 and earlier, LTS 2.541.2 and earlier does not safely handle symbolic links during the extraction of .tar and .tar.gz archives, allowing crafted archives to write files to arbitrary locations on the filesystem, restricted only by file system access permissions of the user running Jenkins. This can be exploited to deploy malicious scripts or plugins on the controller by attackers with Item/Configure permission, or able to control agent processes.
History

Fri, 20 Mar 2026 18:15:00 +0000

Type Values Removed Values Added
First Time appeared Jenkins
Jenkins jenkins
CPEs cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*
cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*
Vendors & Products Jenkins
Jenkins jenkins

Fri, 20 Mar 2026 00:15:00 +0000

Type Values Removed Values Added
Title jenkins: Jenkins: Arbitrary file write and potential code execution through crafted archives
Weaknesses CWE-22
References
Metrics threat_severity

None

threat_severity

Important


Thu, 19 Mar 2026 13:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-59
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 19 Mar 2026 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Jenkins Project
Jenkins Project jenkins
Vendors & Products Jenkins Project
Jenkins Project jenkins

Wed, 18 Mar 2026 15:45:00 +0000

Type Values Removed Values Added
Description Jenkins 2.554 and earlier, LTS 2.541.2 and earlier does not safely handle symbolic links during the extraction of .tar and .tar.gz archives, allowing crafted archives to write files to arbitrary locations on the filesystem, restricted only by file system access permissions of the user running Jenkins. This can be exploited to deploy malicious scripts or plugins on the controller by attackers with Item/Configure permission, or able to control agent processes.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: jenkins

Published: 2026-03-18T15:15:23.950Z

Updated: 2026-03-19T12:58:23.233Z

Reserved: 2026-03-17T15:04:07.615Z

Link: CVE-2026-33001

cve-icon Vulnrichment

Updated: 2026-03-18T15:50:18.837Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-18T16:16:28.067

Modified: 2026-03-20T18:08:15.507

Link: CVE-2026-33001

cve-icon Redhat

Severity : Important

Publid Date: 2026-03-18T15:15:23Z

Links: CVE-2026-33001 - Bugzilla