CVE-2024-23898: Jenkins

High severity, CVSS 8.8. EPSS: 67.2% chance of exploitation in the next 30 days.

Jenkins 2.217 through 2.441 (both inclusive), LTS 2.222.1 through 2.426.2 (both inclusive) does not perform origin validation of requests made through the CLI WebSocket endpoint, resulting in a cross-site WebSocket hijacking (CSWSH) vulnerability, allowing attackers to execute CLI commands on the Jenkins controller.

Affected products

• Jenkins Jenkins: from 2.217, up to and including 2.441; from 2.222.1, up to and including 2.426.2

Published 2024-01-24. Last modified 2026-06-17.