---
cve: "CVE-2026-67527"
severity: "HIGH"
cvss: 7.6
epss: "24%"
vendor: "opf"
kev: false
exploited: false
published: "2026-07-30 20:18:14"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-18T01:58:11+02:00"
---

# CVE-2026-67527

> 7.6 HIGH · 🧪 PoC

## Beschreibung

OpenProject is open-source, web-based project management software. Prior to 17.6.0, PATCH /api/v3/work_packages/{id} accepted _links.fileLinks and allowed authenticated users with edit_work_packages but without manage_file_links to resolve Storages::FileLink records by raw id, detach or hard-delete existing FileLinks, and re-parent FileLinks from other projects to an attacker-controlled work package, exposing origin filename, origin id, and MIME type metadata. This issue is fixed in 17.6.0.

## CVSS-Vektor

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

| 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 | Gering | warn |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Gering | warn |

## Patch verfügbar (OSV)

- db480bdeb8802e3d33e4448bb4e4b56a01de2e1f (Commit)
- 2ba1fce1196268ce5686ae308eceee744237440c (Commit)

## Referenzen

- <https://github.com/opf/openproject/security/advisories/GHSA-c6rc-4288-8p4f>
- <https://github.com/opf/openproject/pull/23815>
- <https://github.com/opf/openproject/commit/db480bdeb8802e3d33e4448bb4e4b56a01de2e1f>
- <https://github.com/opf/openproject/releases/tag/v17.6.0>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-67527) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_