CVE-2025-52887
CVE-2025-52887 · cpp-httplib has unlimited number of http header fields, which causes memory leak
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 7.5 · High · EPSS 0.5%
- Published
- Updated
Stack: system
Affected products and versions
cpp-httplib
- Versions
- = 0.21.0: Affected
No fix published
cpp-httplib Ubuntu:Pro:22.04:LTS
- Versions
- 0.9.9+ds-1
- 0.9.10+ds-1
- 0.10.1+ds-1
- 0.10.2+ds-1
- 0.10.3+ds-1
- 0.10.3+ds-1ubuntu0.1~esm1
- 0.10.3+ds-1ubuntu0.1~esm2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
cpp-httplib Ubuntu:Pro:24.04:LTS
- Versions
- 0.13.1+ds-1ubuntu1
- 0.14.3+ds-1
- 0.14.3+ds-1.1
- 0.14.3+ds-1.1build1
- 0.14.3+ds-1.1build2
- 0.14.3+ds-1.1ubuntu0.1~esm1
- 0.14.3+ds-1.1ubuntu0.1~esm2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
cpp-httplib Ubuntu:25.10
- Versions
- 0.18.7-1
- 0.18.7-1ubuntu0.25.10.1
- 0.18.7-1ubuntu0.25.10.2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
cpp-httplib Ubuntu:Pro:26.04:LTS
- Versions
- 0.18.7-1
- 0.26.0+ds-2ubuntu2
- 0.26.0+ds-2ubuntu3
- 0.26.0+ds-2ubuntu3+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published