CVE-2026-75431 Hardcoded credentials in n/a

Critical 9.1 Published Updated

Remote attackers can execute arbitrary code on PowerJob Server due to a predictable JWT signing key used for authentication.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-75431?

CVE-2026-75431 is a critical vulnerability in n/a, published on 4 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-321

Which versions are affected by CVE-2026-75431?

How do I fix CVE-2026-75431?

No fix has been published for CVE-2026-75431 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-75431 being exploited?

There is no known exploitation of CVE-2026-75431 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-f4hf-w5c6-r4p5.

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