Description
Jenkins 2.483 through 2.550 (both inclusive), LTS 2.492.1 through 2.541.1 (both inclusive) does not escape the user-provided description of the "Mark temporarily offline" offline cause, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Agent/Configure or Agent/Disconnect permission.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Jenkins Project | Jenkins | — | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.jenkins-ci.main:jenkins-core | >= 2.542, < 2.551 | 2.551 | GHSA-85h6-5m3v-gx37 |
| Maven | org.jenkins-ci.main:jenkins-core | >= 2.483, < 2.541.2 | 2.541.2 | GHSA-85h6-5m3v-gx37 |
Advisories 3
- WID-SEC-2026-2437 Oracle Communications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 22, 2026
- WID-SEC-2026-0456 Jenkins: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 23, 2026
- WID-SEC-2026-1194 Oracle Communications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 21, 2026
References
- Jenkins Security Advisory 2026-02-18 vendor-advisory