Vulnerability · Published Jan 24, 2026 · Assigned by GitHub_M

CVE-2026-24469C++ HTTP Server has Critical Path Traversal Vulnerability in RequestHandler Allowing Arbitrary File Read

High 7.5

In plain English

A high-severity path traversal in http-server from frustratedProton. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.6%top 49.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
frustratedProton	http-server	<= 1.0

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

https://github.com/frustratedProton/http-server/security/advisories/GHSA-qp54-6gfq-3gff x_refsource_CONFIRM