CVE-2026-70437: Jenkins Project Jenkins Webhook Secret Credentials Provider Plugin

Low severity, CVSS 3.7. EPSS: 0.3% chance of exploitation in the next 30 days.

Jenkins Webhook Secret Credentials Provider Plugin 16.v0cfa_f0215cf5 and earlier does not use a constant-time comparison function when checking whether the provided and expected webhook bearer token are equal, potentially allowing attackers to use statistical methods to obtain a valid webhook bearer token.

Affected products

• Jenkins Project Jenkins Webhook Secret Credentials Provider Plugin: up to and including 16.v0cfa_f0215cf5

Published 2026-08-05. Last modified 2026-08-31.