🚨 CVE-2026-84677
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.
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Jenkins Security Advisory 2026-09-02
Jenkins – an open source automation server which enables developers around the world to reliably build, test, and deploy their software
September 2, 2026 30
