cube-root directory-serve up to 1.3.7 file-remove.js File path traversal

Summaryinfo

A vulnerability was found in cube-root directory-serve up to 1.3.7 and classified as critical. Affected by this vulnerability is an unknown functionality of the file lib/middleware/file-remove.js. Such manipulation of the argument File leads to path traversal. This vulnerability is listed as CVE-2026-72569. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, has been found in cube-root directory-serve up to 1.3.7. Affected by this issue is an unknown code of the file lib/middleware/file-remove.js. The manipulation of the argument file with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A path traversal vulnerability in cube-root/directory-serve through 1.3.7 allows an unauthenticated remote attacker to delete arbitrary files outside the intended served directory when the application is run with the --delete option. The lib/middleware/file-remove.js middleware does not sanitize the req.query.file parameter before using it to construct file system paths, enabling directory traversal via ../ sequences.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-72569 since 08/10/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/10/2026). This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• cube-root

Name

• directory-serve

Version

• 1.3.0
• 1.3.1
• 1.3.2
• 1.3.3
• 1.3.4
• 1.3.5
• 1.3.6
• 1.3.7

CPE 2.3info

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CPE 2.2info

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