CVE-2026-70426

Summary

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 Software

VendorProductVersion RangeStatus
Jenkins ProjectJenkins2.576 < *unaffected
Jenkins ProjectJenkins2.568.2 < 2.568.*unaffected
Jenkins ProjectRemoting3385.vf1123fb_515da_ < *unaffected
Jenkins ProjectRemoting3355.3357.v931d3c992987 < 3355.*unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References