Security Advisory
CVE-2026-84648
8.8
HIGH
Vulnerability Description
In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, the system log viewer does not escape log record metadata (source, level, and timestamp) resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers in control of agent processes.
Published Date
September 2, 2026
Official Source
NIST NVD Advisory