GHSA-83x3-qgq9-rfcqCriticalCVSS 8.8

Jenkins FilePath.untarFrom() (all versions) validates symlink destinations but not targets,...

Published
August 10, 2026
Last Modified
August 11, 2026

🔗 CVE IDs covered (1)

📋 Description

Jenkins FilePath.untarFrom() (all versions) validates symlink destinations but not targets, bypassing CVE-2026-33001. Any user with Item/Build access triggers tar extraction via POST /job/{name}/build, writing persistent symlinks into the tool cache. Symlinks to secrets/master.key, hudson.util.Secret, credentials.xml, and users/*/config.xml read via GET /job/{name}/lastBuild/consoleText enable offline AES decryption of all credentials and admin API tokens without bcrypt cracking, achieving RCE.

🔗 References (6)