VULNERABILITY INTELLIGENCE

CVE-2026-53435

CVSS score8.8 HIGH
EPSS probability53.13%
CISA KEVNot currently listed
Published2026-06-10
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

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.

Weakness classification

  • CWE-502: Deserialization of Untrusted Data

Primary references