Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Yhirose | Cpp-Httplib | < 0.20.1 |
Related Weaknesses (CWE)
References
- https://github.com/yhirose/cpp-httplib/commit/7b752106ac42bd5b907793950d9125a097Patch
- https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-j6p8-779x-p5pwExploitVendor Advisory
- https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-qjmq-h3cc-qv6wNot Applicable
- https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-j6p8-779x-p5pwExploitVendor Advisory
FAQ
What is CVE-2025-53628?
CVE-2025-53628 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 alloca...
How severe is CVE-2025-53628?
CVE-2025-53628 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-53628?
Check the references section above for vendor advisories and patch information. Affected products include: Yhirose Cpp-Httplib.