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CVE-2026-53435

8.8 high exploit SSVC exploitation: none Modified
NVD · CVE.org

In Jenkins 2.567 and earlier, LTS 2.555.2 and earlier, it is possible for attackers to have Jenkins deserialize arbitrary types defined in Jenkins core or plugins from an attacker-controlled `config.xml` submission in a way that allows them to handle HTTP requests afterwards. This can be used to impersonate any user and send HTTP requests on their behalf, up to and including use of the Script Console to run arbitrary code, or to read arbitrary files from the Jenkins controller.

Fix

Public exploits 1

Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 8.8 · jenkinsNVD modified 2026-10-26 11:10

Affected (CPE criteria) 2

  • cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*
  • cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*

References 15