---
cve: "CVE-2026-96279"
severity: "MEDIUM"
cvss: 6.5
epss: "0.6%"
vendor: "Generic Security"
kev: false
exploited: false
published: "2026-09-27 20:16:53"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-10-01T19:15:51+02:00"
---

# CVE-2026-96279

> 6.5 MEDIUM · 🧪 PoC

## Beschreibung

A malicious OCI registry can hardlink arbitrary host files into the extraction directory when a user installs or updates a Flatpak application from an OCI remote, allowing disclosure of arbitrary host file contents. For system-wide installs running as root, this includes sensitive files such as /etc/shadow.

## CNA-Record (Kanon, cvelistV5)

- CNA: **redhat**
- State: PUBLISHED
- Stand: 2026-09-28 13:56:44
- CNA-CVSS: **6.5** (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **no**
  - Technical Impact: **partial**

## CVSS-Vektor

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

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

## Referenzen

- <https://access.redhat.com/security/cve/CVE-2026-96279>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2539417>
- <https://github.com/flatpak/flatpak/security/advisories/GHSA-9rww-v4mm-x4jg>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-96279) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_