---
cve: "CVE-2026-75431"
severity: "CRITICAL"
cvss: 9.1
epss: "0.8%"
vendor: "n/a"
kev: false
exploited: false
published: "2026-09-04 16:17:59"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-24T23:05:15+02:00"
---

# CVE-2026-75431

> 9.1 CRITICAL · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
CVSS:3.1/AC:L/AV:N/A:N/C:H/I:H/PR:N/S:U/UI:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Keine | good |

## Referenzen

- <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>
- <https://gist.github.com/unpredictable21/39e6ce22e4bc45b0e553d0fa6a6e4d1c>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-75431) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_