Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Yhirose | Cpp-Httplib | < 0.23.0 |
Related Weaknesses (CWE)
References
- https://github.com/yhirose/cpp-httplib/commit/17ba303889b8d4d719be3879a70639ab65Patch
- https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-j6p8-779x-p5pwNot Applicable
- https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-qjmq-h3cc-qv6wExploitVendor Advisory
- https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-qjmq-h3cc-qv6wExploitVendor Advisory
FAQ
What is CVE-2025-53629?
CVE-2025-53629 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 t...
How severe is CVE-2025-53629?
CVE-2025-53629 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-53629?
Check the references section above for vendor advisories and patch information. Affected products include: Yhirose Cpp-Httplib.