What’s Vulnerable › Vulnerabilities
CVE-2026-84648
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.6% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-02 · updated 2026-09-11
- Weakness: CWE-79
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.
Affected products
- Jenkins: before 2.568.3; before 2.580 — fixed in 2.568.3, 2.580
How to fix
Upgrade to a fixed version: Jenkins 2.568.3, 2.580. Check the vendor advisory for mitigations.
References
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