CVE-2024-23903: Jenkins GitHub Branch Source

Medium severity, CVSS 5.3. EPSS: 0.5% chance of exploitation in the next 30 days.

Jenkins GitLab Branch Source Plugin 684.vea_fa_7c1e2fe3 and earlier uses a non-constant time comparison function when checking whether the provided and expected webhook token are equal, potentially allowing attackers to use statistical methods to obtain a valid webhook token.

Affected products

• Jenkins GitHub Branch Source: up to and including 684.vea_fa_7c1e2fe3

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