---
cve: "CVE-2026-12411"
severity: "HIGH"
cvss: 8.4
epss: "24%"
vendor: "Canonical"
kev: false
exploited: false
published: "2026-06-26 15:27:55"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-10T07:47:12+02:00"
---

# CVE-2026-12411

> 8.4 HIGH · 🧪 PoC

## Beschreibung

Broken Access Control in the devLXDInstancePatchHandler component of Canonical LXD allows an untrusted guest to mount, read, and overwrite another guest's custom storage volume via a crafted device PATCH request over /dev/lxd when security.devlxd.management.volumes is enabled.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| 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)

- 85f897013ccdb0f8f44d434a3b655d2edcefcfae (Commit)

## Referenzen

- <https://github.com/canonical/lxd/security/advisories/GHSA-hhf9-qw4v-72xp>
- <https://github.com/canonical/lxd/pull/18585>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-12411) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_