Vulnerability DatabaseCVE-2026-48921
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CVE-2026-48921
Published:May 27, 2026
Updated:June 13, 2026
Jenkins Pipeline: Groovy Libraries Plugin 797.v90ea_a_9b_e45a_0 and earlier does not prohibit symbolic links in shared libraries, allowing attackers able to control the content of a library used by a Pipeline job to read arbitrary files on the Jenkins controller filesystem.
Affected Packages
io.jenkins.plugins:pipeline-groovy-lib (JAVA):
Affected version(s) >=589.vb_a_b_4a_a_8c443c <798.v5cc688825312
Fix Suggestion:
Update to version 798.v5cc688825312
Related Resources (1)
https://www.jenkins.io/security/advisory/2026-05-27/#SECURITY-3727
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CVSS v4
Base Score:
7.7
Attack Vector
NETWORK
Attack Complexity
HIGH
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:
7.5
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Link Resolution Before File Access ('Link Following')
CWE-59
EPSS
Base Score:
0.41