VulnerabilityDeferred

CVE-2026-24469

Versions 1.0 and below are vulnerable to Path Traversal via the RequestHandler::handleRequest method.

HIGH 7.5EPSS 0.61%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.61%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.61% probability · 47th percentile
CISA KEV: Not listed
Weakness: CWE-22
Source: security-advisories@github.com

References

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.