---
cve: "CVE-2026-27775"
severity: "HIGH"
cvss: 8.8
epss: "57%"
vendor: "Gitea"
kev: false
exploited: false
published: "2026-07-03 21:16:59"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-07T13:06:24+02:00"
---

# CVE-2026-27775

> 8.8 HIGH · 🧪 PoC

## Beschreibung

Gitea 1.25.5 caches a branch-specific write-permission result across multiple refs in one pre-receive hook session, allowing a per-branch maintainer-edit grant to be reused for other refs and escalate to full repository write access.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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 | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- 4aa0d704f2c7d30351016b740bfc45247fd77efa (Commit)

## Referenzen

- <https://github.com/go-gitea/gitea/security/advisories/GHSA-649p-mmhf-85c7>
- <https://github.com/go-gitea/gitea/pull/38151>
- <https://github.com/go-gitea/gitea/releases/tag/v1.26.3>
- <https://blog.gitea.com/release-of-1.26.3-and-1.26.4/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-27775) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_