What’s Vulnerable › Vulnerabilities

CVE-2026-75431

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-04 · updated 2026-09-08
• Weakness: CWE-321

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.

References

• https://gist.github.com/unpredictable21/39e6ce22e4bc45b0e553d0fa6a6e4d1c
• https://github.com/PowerJob/PowerJob/blob/master/docker-compose.yml
• https://github.com/PowerJob/PowerJob/blob/master/powerjob-server/powerjob-server-auth/src/main/java/tech/powerjob/server/auth/jwt/impl/DefaultSecretProvider.java
• https://github.com/PowerJob/PowerJob/blob/master/powerjob-server/powerjob-server-auth/src/main/java/tech/powerjob/server/auth/jwt/impl/JwtServiceImpl.java
• https://github.com/PowerJob/PowerJob/blob/master/powerjob-server/powerjob-server-openapi/src/main/java/tech/powerjob/server/openapi/service/impl/OpenApiSecurityServiceImpl.java
• https://github.com/PowerJob/PowerJob/blob/master/powerjob-server/powerjob-server-starter/src/main/resources/application-daily.properties

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