Project restriction bypass via instance migration config override
Published Aug 12, 2026
9.9
CRITICALCVSS 3.1
EPSS 0.44%
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.
Affected products
-
- Version 5.0.0StatusaffectedConstraints<5.0.8
- Version 5.21.0StatusaffectedConstraints<5.21.6
- Version 6.0StatusaffectedConstraints<6.10
- Version
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Vendor solution
Upgrade to LXD version 5.0.8 or later, or 5.12.6 or later, or 6.10 or later.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Aug 13, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
Aug–Oct 2026- EPSS v5
Percentile over time
- EPSS v5
Table of values (2 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.44% (0.00444) | 36.33th | v5 (v2026.06.15) |
| Aug 13, 2026 | 0.25% (0.00246) | 16.02th | v5 (v2026.06.15) |
References (1)
- https://github.com/canonical/lxd/security/advisories/GHSA-gcr9-5q6r-w625 exploitvdb-entryvendor-advisoryVendor AdvisoryMitigation
| Link | Providers | Tags |
|---|---|---|
| https://github.com/canonical/lxd/security/advisories/GHSA-gcr9-5q6r-w625 | exploitvdb-entryvendor-advisoryVendor AdvisoryMitigation |
Change history (0)
No recorded changes yet.