CVE-2026-46527: NULL Pointer Dereference

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.44.0, When the server has called Server::settrustedproxies with a non-empty trusted-proxy list, an attacker can send an HTTP request that includes an X-Forwarded-For header whose value parses to no valid ...

cpp-httplib security vulnerabilities

cpp-httplib is a C++ library developed by Yhirose, which includes HTTP/HTTPS server and client components. Versions of cpp-httplib prior to 0.43.4 contained security vulnerabilities. These vulnerabilities stemmed from negative chunk sizes in chunked transmission encoding, leading to unbounded...

cpp-httplib code issues and vulnerabilities

cpp-httplib is a C++ library developed by Yhirose, designed for HTTP/HTTPS servers and clients. Versions of cpp-httplib prior to 0.44.0 contained code vulnerabilities. These vulnerabilities occurred when the server had a non-empty trusted proxy list; attackers could send HTTP requests with the...

CVE-2026-45372: Improper Neutralization of CRLF Sequences

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.44.0, when cpp-httplib's server parses an incoming request, it applies percent-decoding to every header value except Location and Referer. The validity check isfieldvalue is run before decoding, so encode...

Security update for cpp-httplib (important)

openSUSE Security Update: Security update for cpp-httplib Announcement ID: openSUSE-SU-2026:0174-1 Rating: important References: 1255835 1256518 1259220 1259221 1259373 Cross-References: CVE-2026-21428 CVE-2026-22776 CVE-2026-28434 CVE-2026-28435 CVE-2026-29076 CVSS scores: CVE-2026-21428 SUSE: 8...

PT-2026-44988

Name of the Vulnerable Software and Affected Versions cpp-httplib versions prior to 0.44.0 Description When the server parses an incoming request, it applies percent-decoding to every header value except Location and Referer. Because the validity check is field value is performed before decoding,...

PT-2026-44975

Name of the Vulnerable Software and Affected Versions cpp-httplib versions prior to 0.43.4 Description A flaw in the ChunkedDecoder::read payload function of the cpp-httplib library allows a remote attacker to cause a denial of service. The issue occurs because the library uses std::strtoul to...

[SECURITY] [DSA 6228-1] cpp-httplib security update

------------------------------------------------------------------------- Debian Security Advisory DSA-6228-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff April 22, 2026 https://www.debian.org/security/faq -...

Debian dsa-6228 : libcpp-httplib-dev - security update

The remote Debian 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6228 advisory. - ------------------------------------------------------------------------- Debian Security Advisory DSA-6228-1 [email protected] https://www.debian.org/securit...

OPENSUSE-SU-2026:10573-1 cpp-httplib-devel-0.42.0-1.1 on GA media

These are all security issues fixed in the cpp-httplib-devel-0.42.0-1.1 package on the GA media of openSUSE Tumbleweed...

OESA-2026-1869 cpp-httplib security update

A C++11 single-file header-only cross platform HTTP/HTTPS library. It's extremely easy to setup. Just include httplib.h file in your code! Security Fixes: cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.39.0, the cpp-httplib HTTP client forwards stored...

OESA-2026-1867 cpp-httplib security update

A C++11 single-file header-only cross platform HTTP/HTTPS library. It's extremely easy to setup. Just include httplib.h file in your code! Security Fixes: cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.39.0, the cpp-httplib HTTP client forwards stored...

OESA-2026-1870 cpp-httplib security update

A C++11 single-file header-only cross platform HTTP/HTTPS library. It's extremely easy to setup. Just include httplib.h file in your code! Security Fixes: cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.39.0, the cpp-httplib HTTP client forwards stored...

OESA-2026-1868 cpp-httplib security update

A C++11 single-file header-only cross platform HTTP/HTTPS library. It's extremely easy to setup. Just include httplib.h file in your code! Security Fixes: cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.39.0, the cpp-httplib HTTP client forwards stored...

cpp-httplib Insufficient Protection Data Compromise

The vulnerability of the cpp-httplib library is related to insufficient protection of service data. Exploiting this vulnerability could allow an attacker to compromise the confidentiality and integrity of the protected information...

SUSE CVE-2026-34441

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...

Linux Distros Unpatched Vulnerability : CVE-2026-34441

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

CVE-2026-34441

A flaw was found in cpp-httplib, a C++11 HTTP/HTTPS library. This vulnerability, known as HTTP Request Smuggling, allows a remote attacker to embed an arbitrary HTTP request within the body of a GET request. The server's static file handler fails to consume the entire request body, leaving unread...

Fedora: Security Advisory (FEDORA-2026-04a531cece)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Fedora: Security Advisory (FEDORA-2026-e76feaf213)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...