CVE-2025-53537

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CVSS 3.1

7.5 high

EPSS

<1%p35

Published

Jul 23, 2025 (Jul 23, 2025)

Modified

Jun 17, 2026

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.

Vendors: oisf
Products: libhtp
Weakness: CWE-401
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (0.4%)

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