VULNERABILITY INTELLIGENCE

CVE-2025-53629

CVSS score7.5 HIGH
EPSS probability0.59%
CISA KEVNot currently listed
Published2025-07-10
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

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 in the header can allocate memory arbitrarily in the server, potentially leading to its exhaustion. This vulnerability is fixed in 0.23.0. NOTE: This vulnerability is related to CVE-2025-53628.

Weakness classification

  • security-advisories@github.com: CWE-770

Primary references