Deserialization of Untrusted Data Affecting jenkins package, versions *


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.31% (24th percentile)

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  • Snyk IDSNYK-RHEL10-JENKINS-18650677
  • published12 Aug 2026
  • disclosed5 Aug 2026

Introduced: 5 Aug 2026

NewCVE-2026-70426  (opens in a new tab)
CWE-502  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:10 jenkins.

NVD Description

Note: Versions mentioned in the description apply only to the upstream jenkins package and not the jenkins package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1