CVE-2026-75431

Critical severity, CVSS 9.1. EPSS: 1.1% chance of exploitation in the next 30 days.

PowerJob Server version 5.1.2 (and likely earlier) uses a predictable JWT signing key for HS256-based authentication. This allows a remote attacker to execute arbitrary code.

Published 2026-09-04. Last modified 2026-09-08.