CVE-2025-53629
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductYhirose Cpp-httplib
PublishedJul 10, 2025
First seenJul 10, 2025
Weakness typeCWE-770Allocation of resources without limits
How to fix
Update
- yhirose cpp-httplib0.23.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| yhirose cpp-httplib | v < 0.23.0 | 0.23.0 |
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