CVE-2026-34441

MEDIUM

4.8

Description

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to version 0.40.0, cpp-httplib is vulnerable to HTTP Request Smuggling. The server's static file handler serves GET responses without consuming the request body. On HTTP/1.1 keep-alive connections, the unread body bytes remain on the TCP stream and are interpreted as the start of a new HTTP request. An attacker can embed an arbitrary HTTP request inside the body of a GET request, which the server processes as a separate request. This issue has been patched in version 0.40.0.

Details CVE

Score CVSS v3.14.8

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Vecteur d'attaqueNETWORK

ComplexiteHIGH

Privileges requisNONE

Interaction utilisateurNONE

Publie3/31/2026

Derniere modification4/1/2026

Sourcenvd

Observations honeypot0

Produits affectes

yhirose:cpp-httplib

Faiblesses (CWE)

CWE-444

References

https://github.com/yhirose/cpp-httplib/releases/tag/v0.40.0(security-advisories@github.com)

https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-jv63-rm9j-6jwc(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

This product uses data from the NVD API but is not endorsed or certified by the NVD.