CVE-2021-21620: Jenkins Claim

Medium severity, CVSS 4.3. EPSS: 1.6% chance of exploitation in the next 30 days.

A cross-site request forgery (CSRF) vulnerability in Jenkins Claim Plugin 2.18.1 and earlier allows attackers to change claims.

Affected products

• Jenkins Claim: up to and including 2.18.1

Published 2021-02-24. Last modified 2026-06-17.