Description
In Remoting 3384.v60d89463d9e0 and earlier, except 3355.3357.v931d3c992987, included in Jenkins 2.575 and earlier, LTS 2.568.1 and earlier, the JEP-200 class filter is not applied to classes resolved via a fallback path in the Remoting deserialization implementation, allowing agent processes, code running on agents, and attackers with Agent/Connect permission to bypass the JEP-200 deserialization filter for classes on the Jenkins core classpath.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Jenkins Project | Jenkins | — | — |
| Jenkins Project | Remoting | — | — |
Advisories 1
- WID-SEC-2026-2665 Jenkins Plugins: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 26, 2026
References
- Jenkins Security Advisory 2026-08-05 vendor-advisory