CVE-2025-66577

cpp-httplib (C++11 single-file header) contains CVE-2025-66577. The issue arises from unconditional acceptance of client-controlled headers (X-Forwarded-For, X-Real-IP) in get_client_ip() within docker/main.cc, allowing spoofed client IPs to influence server-visible metadata, logging, and authori...

CVE-2026-28434

The CVE affects cpp-httplib (C++11 single-file header-only library). Before 0.35.0, if a request handler throws an exception and no custom exception handler is registered via set_exception_handler(), the library writes the exception message into the HTTP response header EXCEPTION_WHAT and sends i...

CVE-2026-29076

Affected software: cpp-httplib (C++11 single-file header-only HTTP/HTTPS library). The vulnerability occurs before version 0.37.0 where std::regex (libstdc++) is used to parse RFC 5987 encoded filename* values in multipart Content-Disposition headers. The regex engine’s backtracking can cause dee...