CVE-2026-33001
March 18, 2026
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.
Affected Packages
https://github.com/jenkinsci/jenkins.git (GITHUB):
Affected version(s) >=jenkins-1.409.1-rc1 <jenkins-2.555Fix Suggestion:
Update to version jenkins-2.555https://github.com/jenkinsci/jenkins.git (GITHUB):
Affected version(s) >=jenkins-1.409.1 <jenkins-2.541.3Fix Suggestion:
Update to version jenkins-2.541.3org.jenkins-ci.main:jenkins-core (JAVA):
Affected version(s) >=1.409.1 <2.541.3Fix Suggestion:
Update to version 2.541.3org.jenkins-ci.main:jenkins-core (JAVA):
Affected version(s) >=1.396 <2.555Fix Suggestion:
Update to version 2.555Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
EPSS
Base Score:
0.12
