Vulnerability Description
Jenkins 2.587 and earlier, LTS 2.580.1 and earlier checks for symbolic links in the path of an extracted file only before creating its parent directories, not immediately before writing it, and allows symbolic links in artifacts to replace existing files or empty directories, allowing attackers with Item/Configure permission to write files to arbitrary locations on the Jenkins controller file system.
References
FAQ
What is CVE-2026-117617?
CVE-2026-117617 is a documented vulnerability. Jenkins 2.587 and earlier, LTS 2.580.1 and earlier checks for symbolic links in the path of an extracted file only before creating its parent directories, not immediately before writing it, and allows...
How severe is CVE-2026-117617?
CVSS scoring is not yet available for CVE-2026-117617. Check NVD for updates.
Is there a patch for CVE-2026-117617?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.