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CVE-2026-53435

High

High exploit probability or critical severity with a known exploit.

CVSS base
8.8 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
53.1%
98.9th percentile
CISA KEV
Not listed
Weakness / dates
CWE-502
Published 2026-06-10 · modified 2026-08-27

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.

Affected

jenkins

References

Official: NVD · CVE.org