CVE-2026-70426
Fixed in a distro release EPSS <1%CVSS 9.0
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.
Products: Jenkins project Jenkins, Jenkins Project Remoting
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | jenkins-2.541 | no fix |
| Chainguard | jenkins-2.555 | no fix |
| Chainguard | jenkins-2.568 | 2.568.2-r0 |