CVE-2026-63296

Project restriction bypass via instance migration config override

Published: Aug 12, 2026Updated: Sep 11, 2026 Sources: CVE List NVDCWE-863

9.9CRITICAL

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:CScope

Changed

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

CWE-863

Affected Products

Canonical

commercial·GBaka canonical ltd.

LXDOn-prem

Operating Systems / linux-distro

and 1 more affected products View all →

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Initial Access

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References

https://github.com/canonical/lxd/security/advisories/GHSA-gcr9-5q6r-w625

github.com

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