CVE-2025-53537

Description

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.

PUBLISHED Reserved 2025-07-02 | Published 2025-07-23 | Updated 2025-07-23 | Assigner GitHub_M

Problem types

CWE-401: Missing Release of Memory after Effective Lifetime

Product status

References

github.com/...libhtp/security/advisories/GHSA-v3qq-h8mh-vph7

github.com/...ommit/9037ea35110a0d97be5cedf8d31fb4cd9a38c7a7

cve.org (CVE-2025-53537)

nvd.nist.gov (CVE-2025-53537)

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