CVE-2026-63295

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.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/canonical/lxd/security/advisories/GHSA-7vp9-3vmp-c5jm	Vendor Advisory Exploit
https://github.com/canonical/lxd/security/advisories/GHSA-7vp9-3vmp-c5jm	Vendor Advisory Exploit

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:canonical:lxd::::::::
	cpe:2.3:a:canonical:lxd::::::::
	cpe:2.3:a:canonical:lxd::::::::
	cpe:2.3:a:canonical:lxd::::::::

History

No history.

Information

Published : 2026-08-12 20:17

Updated : 2026-09-11 15:13

NVD link : CVE-2026-63295

Mitre link : CVE-2026-63295

CVE.ORG link : CVE-2026-63295

JSON object : View

Products Affected

canonical

lxd

CWE

CWE-863

Incorrect Authorization

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