CVE-2026-63296

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.

Weakness classification

• security@ubuntu.com: CWE-863

Primary references

• security@ubuntu.com — Vendor Advisory, Exploit, Mitigation
• 134c704f-9b21-4f2e-91b3-4a467353bcc0 — Vendor Advisory, Exploit, Mitigation