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.
History

Wed, 10 Jun 2026 13:30:00 +0000

Type Values Removed Values Added
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.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: jenkins

Published:

Updated: 2026-06-10T13:05:57.208Z

Reserved: 2026-06-09T14:26:44.788Z

Link: CVE-2026-53435

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-06-10T14:16:36.440

Modified: 2026-06-10T14:16:36.440

Link: CVE-2026-53435

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.