CVE-2026-75431
PowerJob Server version 5.1.2 (and likely earlier) uses a predictable JWT signing key for HS256...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2026-75431- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AC:L/AV:N/A:N/C:H/I:H/PR:N/S:U/UI:N - Weakness
- CWE-321
- Updated
- 2026-11-02
EUVDEUVD-2026-71448
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.
- Record
EUVD-2026-71448- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AC:L/AV:N/A:N/C:H/I:H/PR:N/S:U/UI:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-f4hf-w5c6-r4p5
PowerJob Server version 5.1.2 (and likely earlier) uses a predictable JWT signing key for HS256...
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.
- Record
GHSA-f4hf-w5c6-r4p5- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-321
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-75431- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-321
- Updated
- 2026-11-02
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | unpredictable21/CVE-2026-75431_PowerJob_jwt_key_predictable | 2026-08-11 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-75431 is a critical vulnerability (CVSS 9.1), published September 4, 2026. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 1.07%, the 65th percentile. No source names a fixed version.
References
github.com/PowerJob/PowerJob/blob/master/docker-compose.yml
gist.github.com/unpredictable21/39e6ce22e4bc45b0e553d0fa6a6e4d1c
nvd.nist.gov/vuln/detail/CVE-2026-75431