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-2026-63296

CVE-2026-63296CRITICAL

Canonical LXD — Project restriction bypass via instance migration config override

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   L   N  C  H  H  H    9.9   .0044   36.4     —

AFFECTED
  Product  Versions  Fixed
  LXD      5.0.0 –   —

TIMELINE
  Jul 16  Reserved by canonical
  Aug 12  Published (CNA: canonical)
  Sep 11  EXPLOIT PUBLISHED — CVE-2026-63296 (Canonical LXD). Public exploit reference added.

CWE-863 · CNA: canonical · CVSS v3.1 · 1 reference · NVD status: Analyzed

Description

An authorization bypass vulnerability in LXD allows an authenticated attacker to bypass target project restrictions during instance migration. When migrating an instance to a target project, LXD accepts configuration overrides without validating the new configuration against the target project's enforced restrictions. An attacker can exploit this flaw to move instances with disallowed high-privilege configurations into restricted projects, bypassing security controls.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
July 16, 2026	Reserved	Reserved by canonical
August 12, 2026	Published	Published (CNA: canonical)
September 11, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-63296 (Canonical LXD). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Canonical	LXD	—	5.0.0	—

Weaknesses

CWE-863

References (1)

https://github.com/canonical/lxd/security/advisories/GHSA-gcr9-5q6r-w625 [Vendor Advisory, Exploit, Mitigation]

Authoritative record: CVE-2026-63296 at cve.org

Vendors: canonical

Weaknesses: CWE-863

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-63296 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.