CVE-2026-63293

Summary

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 Software

VendorProductVersion RangeStatus
CanonicalLXD4.0.0 < 4.0.12affected
CanonicalLXD5.0.0 < 5.0.8affected
CanonicalLXD5.21.0 < 5.21.6affected
CanonicalLXD6.0 < 6.10affected

Weaknesses

  • CWE-59: CWE-59 Improper Link Resolution Before File Access ('Link Following')

References