LibHTP is a security-aware parser for the HTTP protocol and the related bits and pieces. Version 0.5.46 may parse malformed request traffic, leading to excessive CPU usage. Version 0.5.47 contains a patch for the issue. No known workarounds are available.
https://redmine.openinfosecfoundation.org/issues/6757
https://github.com/OISF/libhtp/security/advisories/GHSA-ffr2-45w9-7wmg
https://github.com/OISF/libhtp/commit/bf618ec7f243cebfb0f7e84c3cb158955cb32b4d
https://github.com/OISF/libhtp/commit/79e713f3e527593a45f545e854cd9e6fbb3cd3ed