CVE-2025-53629
cpp-httplib Unbounded Memory Allocation in Chunked/No-Length Requests Vulnerability
- State
- Published
- Severity
- 7.5 High
- Published
- Jul 10, 2025
- Updated
- Jul 10, 2025
- Reserved
- Jul 7, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | GitHub_M |
Weaknesses
- CWE-770 Allocation of Resources Without Limits or Throttling
Affected Products
| Product | Versions |
|---|---|
cpp-httplibyhirose |
|
References
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