---
cve: "CVE-2026-50540"
severity: "CRITICAL"
cvss: 9.6
epss: "40%"
vendor: "kata-containers"
kev: false
exploited: false
published: "2026-08-07 21:17:28"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-18T08:40:29+02:00"
---

# CVE-2026-50540

> 9.6 CRITICAL · 🧪 PoC

## Beschreibung

Kata Containers is an open source project focusing on a standard implementation of lightweight Virtual Machines (VMs) that perform like containers. Prior to version 4.0.0, kata-runtime is vulnerable to host code execution via an unvalidated configuration path annotation. The runtime accepts an arbitrary io.katacontainers.config_path pod annotation and loads the referenced host TOML file without restriction. As a result, a pod user who can place a file at a host-visible path can supply a configuration that selects an attacker-controlled hypervisor or virtio-fs daemon binary, executing code as root on the host. This issue is fixed in version 4.0.0.

## CVSS-Vektor

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

| 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 | Keine | good |

## Patch verfügbar (OSV)

- 03cc670076099530f4e1e9cb22849afdafb20f65 (Commit)

## Referenzen

- <https://github.com/kata-containers/kata-containers/security/advisories/GHSA-mp2j-xm59-qfgw>
- <https://github.com/kata-containers/kata-containers/commit/03cc670076099530f4e1e9cb22849afdafb20f65>
- <http://www.openwall.com/lists/oss-security/2026/08/23/3>
- <http://www.openwall.com/lists/oss-security/2026/08/24/1>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-50540) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_