---
cve: "CVE-2026-73294"
severity: "CRITICAL"
cvss: 9.9
epss: "45%"
vendor: "semaphoreui"
kev: false
exploited: false
published: "2026-08-12 16:17:22"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-16T15:52:47+02:00"
---

# CVE-2026-73294

> 9.9 CRITICAL · 🧪 PoC

## Beschreibung

Semaphore UI is a web interface for managing DevOps tools. Prior to 2.18.17 and 2.19.5-beta2, repository git_url handling passes an attacker-controlled --upload-pack option to CmdGitClient.GetLastRemoteCommitHash through POST /api/project/{id}/repositories and scheduled commit-hash polling, allowing a project Manager or Owner to execute arbitrary OS commands in the Semaphore server process. This issue is fixed in versions 2.18.17 and 2.19.5-beta2.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 4af0a588f303e04239c1e8886e7e57bd4ad1d652 (Commit)
- 60defb2217512777af3a266f31082c93365a465b (Commit)

## Referenzen

- <https://github.com/semaphoreui/semaphore/security/advisories/GHSA-xp7j-h7jc-4w8p>
- <https://github.com/semaphoreui/semaphore/commit/7e8a9434bd81b82cf42220151c74801ea97542d6>
- <https://github.com/semaphoreui/semaphore/commit/a7a7a33a64aea382a0726b3722856f298663eacf>
- <https://github.com/semaphoreui/semaphore/tree/v2.18.17>
- <https://github.com/semaphoreui/semaphore/tree/v2.19.5-beta2>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-73294) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_