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CVE-2026-63293 Details

Description

A link following vulnerability in LXD allows an attacker to achieve arbitrary file read and write operations on the host system. When importing or unpacking an image archive, LXD fails to validate whether the metadata.yaml file is a symbolic link. An attacker can exploit this flaw by providing a crafted image archive with a symlinked metadata.yaml file pointing to target file paths on the host system.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:9.9 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/canonical/lxd/security/advisories/GHSA-j825-cg34-5fr5	CISA-ADP	Vendor AdvisoryExploit
https://github.com/canonical/lxd/security/advisories/GHSA-j825-cg34-5fr5	[email protected]	Vendor AdvisoryExploit

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-59	Improper Link Resolution Before File Access ('Link Following')	[email protected]

Affected Products

Product	Versions
canonical lxd	>= 4.0.0, < 4.0.12
CPE cpe:2.3:a:canonical:lxd:::::::: Remediation No remediation found in references.

Change History

3 change records found show changes

Date	Action	Recorded By
Sep 3, 2026	Initial Analysis	[email protected]
Aug 13, 2026	CVE Modified	CISA-ADP
Aug 12, 2026	New CVE Received	[email protected]