The following vulnerability was published for libhtp.
CVE-2025-53537[0]:
| LibHTP is a security-aware parser for the HTTP protocol and its
| related bits and pieces. In versions 0.5.50 and below, there is a
| traffic-induced memory leak that can starve the process of memory,
| leading to loss of visibility. To workaround this issue, set
| `suricata.yaml app-layer.protocols.http.libhtp.default-config.lzma-
| enabled` to false. This issue is fixed in version 0.5.51.
If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.