CVE-2026-53435

INFO Priority: 0.00 BB Relevance: 10/100
Published: 2026-06-10 Modified: 2026-10-26 First seen: 2026-10-29 Status: pending_score

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 (1)

Affected Software (2)

VendorProductVersion
jenkins jenkins < 2.555.3
jenkins jenkins < 2.568

Bug Bounty Relevance

10 / 100
✓ High exploitation probability

CVSS Score

Unscored

EPSS — Exploitation Probability

53.13%
Raw Score 0.531310
Percentile 99.0%
Date 2026-10-28

Intelligence Sources

nvd ref →