CVE-2026-63293: fallo crítico en Canonical LXD
Arbitrary File Read/Write: metadata.yaml symlink in image allows host filesystem access as root
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
28Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 9.9epss 0.6%
A link following vulnerability in LXD allows an attacker to achieve arbitrary file read and write operations on the host system. When importing or unpacking an image archive, LXD fails to validate whether the metadata.yaml file is a symbolic link. An attacker can exploit this flaw by providing a crafted image archive with a symlinked metadata.yaml file pointing to target file paths on the host system.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Productos afectados
Canonical · LXDCVEs relacionadas — Canonical LXD
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-63294CRITICALRoot RCE via image backup.yaml symlinkEPSS 0.9%CVE-2026-66897CRITICALInstance template path traversal allows arbitrary host file write as rootEPSS 0.7%CVE-2026-63298HIGHLXD arbitrary lxc.conf directive injection via NVIDIA instance configurationEPSS 0.7%CVE-2026-9640HIGHLXD Snapshot Import Privilege Escalation VulnerabilityEPSS 0.6%CVE-2025-54293HIGHPath Traversal in LXD Instance Log File RetrievalEPSS 0.6%CVE-2026-66898CRITICALPath traversal via unvalidated instance name in backup tarball restore enables root file write / RCEEPSS 0.6%