CVE-2026-84677 — Jenkins Project / Jenkins update-center2

CVE-2026-84677

Jenkins Project / Jenkins update-center2 PUBLISHED

Description (CNA)

Jenkins update-center2 3.18.3 and earlier does not escape plugin-provided values (plugin names, descriptions, and version metadata) on plugin download index pages, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to provide a plugin for hosting.

Affected (CNA)

Vendor / product	Versions
Jenkins Project / Jenkins update-center2	affected 0 through 3.18.3

CWE

No CWE identifiers supplied.

References

https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-4038

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.