Canonical LXD up to 5.21.3/6.4 Log File path traversal

Summaryinfo

A vulnerability labeled as critical has been found in Canonical LXD up to 5.21.3/6.4. The affected element is an unknown function of the component Log File Handler. Executing a manipulation can lead to path traversal. This vulnerability appears as CVE-2025-54293. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in Canonical LXD up to 5.21.3/6.4. This vulnerability affects an unknown part of the component Log File Handler. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality. CVE summarizes:

Path Traversal in the log file retrieval function in Canonical LXD 5.0 LTS on Linux allows authenticated remote attackers to read arbitrary files on the host system via crafted log file names or symbolic links.

The advisory is shared for download at github.com. This vulnerability was named CVE-2025-54293 since 07/18/2025. The exploitation appears to be easy. The attack can be initiated remotely. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1006.

The vulnerability scanner Nessus provides a plugin with the ID 270713 (Debian dsa-6027 : golang-github-lxc-incus-dev - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.21.4 or 6.5 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (270713). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• Canonical

Name

• LXD

Version

• 5.21.0
• 5.21.1
• 5.21.2
• 5.21.3
• 6.0
• 6.1
• 6.2
• 6.3
• 6.4

License

• open-source

Website

• Product: https://github.com/canonical/lxd/

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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