rejetto HFS up to 3.2.0 JSON file lang path traversal

Summaryinfo

A vulnerability, which was classified as problematic, was found in rejetto HFS up to 3.2.0. The affected element is an unknown function of the component JSON file Handler. Executing a manipulation of the argument lang can lead to path traversal. This vulnerability is tracked as CVE-2026-61505. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in rejetto HFS up to 3.2.0. It has been declared as problematic. This vulnerability affects some unknown functionality of the component JSON file Handler. The manipulation of the argument lang 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:

Rejetto HFS 3.0.0 through 3.2.0 allows path traversal through the lang query parameter, permitting a remote unauthenticated attacker to read certain JSON files outside the shared folders. Exploitation is constrained to files matching a narrow naming and format pattern, limiting practical impact.

The advisory is available at github.com. This vulnerability was named CVE-2026-61505 since 07/10/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

Upgrading to version 3.2.1 eliminates this vulnerability.

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Productinfo

Vendor

• rejetto

Name

• HFS

Version

• 3.0
• 3.1
• 3.2.0

Website

• Product: https://github.com/rejetto/hfs/

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