Jenkins: Security Vulnerabilities
In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, Jenkins does not rotate the session when a user is authenticated via the "remember me" cookie, allowing attackers able to serve content on the same site as Jenkins to set a known session cookie in the victim's browser, which after the victim authenticates via the "remember me" cookie, grants the attacker access to Jenkins as that user.
CVSS Score
7.3
EPSS Score
0.005
Published
2026-09-02
Jenkins 2.421 through 2.579 (both inclusive), LTS 2.426.1 through 2.568.2 (both inclusive) does not correctly perform permission checks in the Appearance configuration page, allowing attackers with Overall/Manage permission to modify Appearance configuration options they should not have access to.
CVSS Score
3.5
EPSS Score
0.002
Published
2026-09-02
Jenkins 2.575 and earlier, LTS 2.568.1 and earlier does not safely handle symbolic links with effectively empty names during the extraction of `.tar` and `.tar.gz` archives, allowing attackers able to control agent processes to provide crafted archives to the controller to write files to arbitrary locations on the file system, restricted only by file system access permissions of the user running Jenkins.
CVSS Score
4.3
EPSS Score
0.003
Published
2026-08-05
Jenkins 2.575 and earlier, LTS 2.568.1 and earlier improperly identifies file paths attempting path traversal in file parameter names, allowing attackers with Item/Configure and Item/Build permission to write files to arbitrary locations on the controller file system.
CVSS Score
4.3
EPSS Score
0.003
Published
2026-08-05
Jenkins 2.575 and earlier, LTS 2.568.1 and earlier handles case-insensitivity in user names and group names inconsistently, allowing attackers able to create new users or groups with names that case-insensitively match other characters to impersonate other users or be granted their permissions in some circumstances.
CVSS Score
6.5
EPSS Score
0.002
Published
2026-08-05
Jenkins 2.575 and earlier, LTS 2.568.1 and earlier does not restrict the types of objects that can be instantiated as part of the project naming strategy configuration, allowing attackers with Overall/Manage permission to instantiate arbitrary types related to configuration, including those intended for configuration only by administrators.
CVSS Score
2.7
EPSS Score
0.002
Published
2026-08-05
Missing permission checks in Jenkins Contrast Continuous Application Security Plugin 3.11 and earlier allow attackers with Overall/Read permission to enumerate the names of configured Contrast metadata.
CVSS Score
4.3
EPSS Score
0.003
Published
2026-06-24
A missing permission check in Jenkins MCP Server Plugin 0.177.v629fdb_2557fe and earlier allows attackers with Item/Read permission to read the Pipeline replay scripts of jobs they can access.
CVSS Score
4.3
EPSS Score
0.003
Published
2026-06-24
Jenkins OWASP ZAP Plugin 1.0.7 and earlier performs build operations on the Jenkins controller rather than the assigned agent, allowing attackers with Item/Configure permission to execute arbitrary code on the Jenkins controller.
CVSS Score
8.8
EPSS Score
0.006
Published
2026-06-24
Jenkins FitNesse Plugin 1.36 and earlier stores passwords unencrypted in job config.xml files on the Jenkins controller, where they can be viewed by users with Extended Read permission or access to the Jenkins controller file system.
CVSS Score
4.3
EPSS Score
0.003
Published
2026-06-24