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9.1

PowerJob Server lets attackers run code via weak token key

CVE-2026-75431 · published today
Summary

The PowerJob Server (version 5.1.2 and earlier) uses a signing key that can be guessed, allowing unauthorized users to create valid authentication tokens. This lets a remote attacker execute any command on the server. Update to a newer version or change the signing key to a strong, random value as soon as possible.

Original advisory text
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.
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.
References
Severity
9.1 Critical
CVSS 3.1: 9.1 (MITRE)
Type
CWE-321Use of Hard-coded Cryptographic Key
Timeline
Published4 Sep 2026
Updated4 Sep 2026
First seen4 Sep 2026
Sources
CVE-2026-75431 · NVD
CVE-2026-75431 · MITRE
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