Bug 2511685 (CVE-2026-70426) - CVE-2026-70426 jenkins: remoting: Jenkins Remoting: Arbitrary code execution via deserialization filter bypass
Summary: CVE-2026-70426 jenkins: remoting: Jenkins Remoting: Arbitrary code execution ...
Keywords:
Status: NEW
Alias: CVE-2026-70426
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-05 18:02 UTC by OSIDB Bzimport
Modified: 2026-08-11 16:57 UTC (History)
0 users

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Description OSIDB Bzimport 2026-08-05 18:02:56 UTC 
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.
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