boxscore/security
CVE · referencelatest edition

Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-63294

Canonical LXD — Root RCE via image backup.yaml symlink
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   L   N  C  H  H  H    9.9   .0088   57.7     —
AFFECTED
  Product  Versions  Fixed
  LXD      4.0.0 –   —
TIMELINE
  Jul 16  Reserved by canonical
  Aug 12  Published (CNA: canonical)
  Sep 11  EXPLOIT PUBLISHED — CVE-2026-63294 (Canonical LXD). Public exploit reference added.
CWE-59 · CNA: canonical · CVSS v3.1 · 1 reference · NVD status: Analyzed

Description

A link following vulnerability in LXD allows an attacker to achieve root command execution on the host system. During the import or unpacking of crafted image or backup archives, LXD fails to properly validate and confine the backup.yaml file when it exists as a symbolic link. An attacker can exploit this flaw by providing a malicious archive with a symlinked backup.yaml file, causing LXD to process unconfined configuration metadata and execute arbitrary commands with root privileges.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
July 16, 2026ReservedReserved by canonical
August 12, 2026PublishedPublished (CNA: canonical)
September 11, 2026EXPLOIT PUBLISHEDEXPLOIT PUBLISHED — CVE-2026-63294 (Canonical LXD). Public exploit reference added.

Affected

Affected products and packages — 1 row
VendorProduct / PackageEcosystemVersion introducedFixed
CanonicalLXD—4.0.0—

Weaknesses

CWE-59

References (1)

Related

Authoritative record: CVE-2026-63294 at cve.org

Vendors: canonical

Weaknesses: CWE-59

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-63294 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.