Description


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 exists in cpp-httplib due to the unsafe handling of compressed HTTP request bodies (Content-Encoding: gzip, br, etc.). The library validates the payload_max_length against the compressed data size received from the network, but does not limit the size of the decompressed data stored in memory.

Related CPE's


Weaknesses



CWE-409

CVSS impact metrics


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

7.5 · High

Information


Source identifier

[email protected]

Vulnerability status

Analyzed

Published

2026-01-12T19:16:03.630Z

3 days ago

Last modified

2026-01-15T22:43:10.097Z

1 hour ago