CVE-2023-40343: Jenkins Tuleap Authentication

Medium severity, CVSS 5.9. EPSS: 0.6% chance of exploitation in the next 30 days.

Jenkins Tuleap Authentication Plugin 1.1.20 and earlier uses a non-constant time comparison function when validating an authentication token allowing attackers to use statistical methods to obtain a valid authentication token.

Affected products

• Jenkins Tuleap Authentication: up to and including 1.1.20

Published 2023-08-16. Last modified 2026-06-17.