7.5
High
CVE-2026-28435 cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library
Description
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::set_payload_max_length() on the decompressed request body when using HandlerWithContentReader (streaming ContentReader) with Content-Encoding: gzip (or other supported encodings). A small compressed payload can expand beyond the configured payload limit and be processed by the application, enabling a payload size limit bypass and potential denial of service (CPU/memory exhaustion). This vulnerability is fixed in 0.35.0.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| cpp-httplib 0.35 | earliest → < 0.35.0 | 0.35.0 |
Other CVEs of cpp-httplib
The 24 CVEs of cpp-httplib →
CVE-2026-103930
cpp-httplib is a C++ header-only HTTP/HTTPS library
3.7
Low
CVE-2026-102944
cpp-httplib is a C++ header-only HTTP/HTTPS library
7.5
High
CVE-2026-77358
cpp-httplib is a C++ header-only HTTP/HTTPS library
8.2
High
CVE-2026-77341
cpp-httplib is a C++ header-only HTTP/HTTPS library
5.3
Medium