frustratedProton http-server up to 1.0 HTTP Request handleRequest filename path traversal

Summaryinfo

A vulnerability, which was classified as critical, has been found in frustratedProton http-server up to 1.0. The affected element is the function RequestHandler::handleRequest of the component HTTP Request Handler. Performing a manipulation of the argument filename results in path traversal. This vulnerability is reported as CVE-2026-24469. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, was found in frustratedProton http-server up to 1.0. This affects the function RequestHandler::handleRequest of the component HTTP Request Handler. The manipulation of the argument filename with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality. The summary by CVE is:

C++ HTTP Server is an HTTP/1.1 server built to handle client connections and serve HTTP requests. Versions 1.0 and below are vulnerable to Path Traversal via the RequestHandler::handleRequest method. This flaw allows an unauthenticated, remote attacker to read arbitrary files from the server's filesystem by crafting a malicious HTTP GET request containing ../ sequences. The application fails to sanitize the filename variable derived from the user-controlled URL path, directly concatenating it to the files_directory base path and enabling traversal outside the intended root. No patch was available at the time of publication.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-24469 since 01/23/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/25/2026). MITRE ATT&CK project uses the attack technique T1006 for this issue.

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-4601). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• frustratedProton

Name

• http-server

Version

• 1.0

Website

• Product: https://github.com/frustratedProton/http-server/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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