CVE-2026-36727

Critical severity, CVSS 9.1. EPSS: 0.5% chance of exploitation in the next 30 days.

An insecure authentication vulnerability in the /api/social-sign-in endpoint of bookcars v8.3 allows attackers to bypass authentication via a forged JWT token.

Published 2026-06-09. Last modified 2026-07-23.