CVE-2025-53628 MEDIUM

CVE-2025-53628: cpp-httplib does not limit the length of a line

Vendor Yhirose
Product cpp-httplib
Weakness CWE-835
Published July 10, 2025
Last update July 10, 2025
View on NVD All CVEs

CVSS base score

6.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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 line, permitting an attacker to explore this to allocate memory arbitrarily. This vulnerability is fixed in 0.20.1. NOTE: This vulnerability is related to CVE-2025-53629.

Key dates

02Disclosure timeline

July 10, 2025 CVE published
July 10, 2025 Record updated