CVE-2025-53537 — LibHTP's memory leak with lzma can lead to resource starvation
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…
Published: 2025-07-23 · CVSS: 7.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7