CVE-2026-63295 Details
Description
An authorization bypass vulnerability in LXD allows an authenticated attacker to bypass project-level container isolation restrictions. When a project is configured with restrictions on container privileges (such as enforcing restricted.containers.privilege=isolated), LXD fails to enforce the requirement if an instance configuration omits the security.idmap.isolated key. An attacker can exploit this flaw by creating or updating an instance without explicitly setting security.idmap.isolated, bypassing the target project's security constraints.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Aug 13, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/canonical/lxd/security/advisories/GHSA-7vp9-3vmp-c5jm | CISA-ADP | Vendor AdvisoryExploit |
| https://github.com/canonical/lxd/security/advisories/GHSA-7vp9-3vmp-c5jm | [email protected] | Vendor AdvisoryExploit |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-863 | Incorrect Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| canonical lxd | >= 4.0.0, < 4.0.12 >= 5.0.0, < 5.0.8 >= 5.1, < 5.21.6 >= 6.0, < 6.10 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 11, 2026 | Initial Analysis | [email protected] |
| Aug 13, 2026 | CVE Modified | CISA-ADP |
| Aug 12, 2026 | New CVE Received | [email protected] |