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CVE PROGRAM SOURCE RECORD9.9 Critical

CVE-2026-63293

Arbitrary File Read/Write: metadata.yaml symlink in image allows host filesystem access as root

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Status
Published
Published
Updated
Assigning organization
canonical

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Canonical LXD

Default version status: unaffected

  • 4.0.0 to < 4.0.12affected
  • 5.0.0 to < 5.0.8affected
  • 5.21.0 to < 5.21.6affected
  • 6.0 to < 6.10affected

References