cpp-httplib has unlimited number of http header fields, which causes memory leak
Summary
cpp-httplib has unlimited number of http header fields, which causes memory leak
Original description
The description as published by the source.
cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. In version 0.21.0, when many http headers fields are passed in, the library does not limit the number of headers, and the memory associated with the headers will not be released when the connection is disconnected. This leads to potential exhaustion of system memory and results in a server crash or unresponsiveness. Version 0.22.0 contains a patch for the issue.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Ubuntu UBUNTU-CVE-2025-52887 cpp-httplib
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com