VDB

CVE-2026-63296

CVE-2026-63296 PUBLISHED CVSS 9.9 CRITICAL

Reported by canonical · Published August 12, 2026

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.

Risk Scores

CVSS 3.1
9.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected Products

VendorProductVersions
CanonicalLXD5.0.0, 5.21.0, 6.0
CanonicalLXD5.0.0, 5.21.0, 6.0

Timeline

  • Aug 12, 2026 CVE Published
  • Aug 13, 2026 Coalition ESS Score
  • Aug 13, 2026 CVE Updated
  • Aug 20, 2026 Security Advisory
  • Aug 24, 2026 EPSS Score
  • Aug 30, 2026 EPSS Score
  • Sep 9, 2026 EPSS Score
  • Sep 12, 2026 EPSS Score
  • Sep 16, 2026 EPSS Score
  • Sep 18, 2026 EPSS Score
  • Sep 24, 2026 EPSS Score
  • Sep 26, 2026 EPSS Score

References

  • vdb-entryvendor-advisory
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