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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable yes

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
n/a n/a affected
Version Status Constraints
n/a affected —

No data.

No data.

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No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

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

Fri, 04 Sep 2026 22:15:00 +0000

Type Values Removed Values Added
Title Predictable JWT signing key in PowerJob Server enables arbitrary code execution

Fri, 04 Sep 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-321
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Fri, 04 Sep 2026 16:00:00 +0000

Type Values Removed Values Added
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
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AC:L/AV:N/A:N/C:H/I:H/PR:N/S:U/UI:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-04T18:24:09.744Z

Reserved: 2026-08-17T00:00:00.000Z

Link: CVE-2026-75431

cve-icon Vulnrichment

Updated: 2026-09-04T18:24:05.667Z

cve-icon NVD

Status : Received

Published: 2026-09-04T16:17:59.413

Modified: 2026-09-04T19:17:27.110

Link: CVE-2026-75431

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-04T22:00:06Z

Weaknesses