Vulnerability index

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Cpp Httplib HIGH 7.4
CVE-2026-54919

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. In affected Mbed TLS backend versions from 0.31.0 through 0.46.1 an…

Fix: 0.47.0+
Fix from $1,950 2026-07-10
Cpp Httplib HIGH 7.5
CVE-2026-46527

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::set_trusted_pro…

Fix: 0.44.0+
Fix from $1,950 2026-05-29
Cpp Httplib CRITICAL 9.9
CVE-2026-45372

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 reque…

Fix: 0.44.0+
Fix from $2,300 2026-05-29
Cpp Httplib HIGH 7.5
CVE-2026-45352

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.43.4, negative chunk-size in chunked Transfer-Encoding c…

Fix: 0.43.4+
Fix from $1,950 2026-05-29
Cpp Httplib MEDIUM 6.5
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 …

Fix: 0.40.0+
Fix from $1,600 2026-03-31
Cpp Httplib HIGH 7.4
CVE-2026-33745

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 Basic …

Fix: 0.39.0+
Fix from $1,950 2026-03-27
Cpp Httplib HIGH 8.1
CVE-2026-32627

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.37.2, when a cpp-httplib client is configured with a pro…

Fix: 0.37.2+
Fix from $1,950 2026-03-16
Cpp Httplib HIGH 7.5
CVE-2026-31870

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.37.1, when a cpp-httplib client uses the streaming API (…

Fix: 0.37.1+
Fix from $1,950 2026-03-11
Cpp Httplib MEDIUM 5.9
CVE-2026-29076

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to version 0.37.0, cpp-httplib uses std::regex (libstdc++) to…

Fix: 0.37.0+
Fix from $1,600 2026-03-07
Cpp Httplib HIGH 7.5
CVE-2026-28435

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.35.0, cpp-httplib (httplib.h) does not enforce Server::s…

Fix: 0.35.0+
Fix from $1,950 2026-03-04
Cpp Httplib MEDIUM 5.3
CVE-2026-28434

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.35.0, when a request handler throws a C++ exception and …

Fix: 0.35.0+
Fix from $1,600 2026-03-04
Cpp Httplib HIGH 7.5
CVE-2026-22776

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to version 0.30.1, a Denial of Service (DoS) vulnerability ex…

Fix: 0.30.1+
Fix from $1,950 2026-01-12
Cpp Httplib HIGH 7.5
CVE-2026-21428

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to version 0.30.0, the ``write_headers`` function does not ch…

Fix: 0.30.0+
Fix from $1,950 2026-01-01
Cpp Httplib MEDIUM 5.3
CVE-2025-66577

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.27.0, a vulnerability allows attacker-controlled HTTP he…

Fix: 0.27.0+
Fix from $1,600 2025-12-05
Cpp Httplib CRITICAL 9.8
CVE-2025-66570

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.27.0, a vulnerability allows attacker-controlled HTTP he…

Fix: 0.27.0+
Fix from $2,300 2025-12-05
Cpp Httplib HIGH 8.8
CVE-2025-53628

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.20.1, cpp-httplib does not have a limit for a unique lin…

Fix: 0.20.1+
Fix from $1,950 2025-07-10
Cpp Httplib HIGH 7.5
CVE-2025-53629

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.23.0, incoming requests using Transfer-Encoding: chunked…

Fix: 0.23.0+
Fix from $1,950 2025-07-10
Cpp Httplib HIGH 7.5
CVE-2025-52887

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. In version 0.21.0, when many http headers fields are passed in, the…

Patch available
Fix from $1,950 2025-06-26
Cpp Httplib MEDIUM 5.3
CVE-2025-0825

cpp-httplib version v0.17.3 through v0.18.3 fails to filter CRLF characters ("\r\n") when those are prefixed with a null byte. This enables attackers…

Fix: 0.18.4+
Fix from $1,600 2025-02-04
Cpp Httplib HIGH 7.5
CVE-2020-11709

cpp-httplib through 0.5.8 does not filter \r\n in parameters passed into the set_redirect and set_header functions, which creates possibilities for C…

Fix: after 0.5.8
Fix from $1,950 2020-04-12