CVE-2025-53537

HIGH

7.5

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published7/23/2025

Last Modified8/5/2025

Sourcenvd

Honeypot Sightings0

Affected Products

oisf:libhtp

Weaknesses (CWE)

CWE-401

References

https://github.com/OISF/libhtp/commit/9037ea35110a0d97be5cedf8d31fb4cd9a38c7a7(security-advisories@github.com)

https://github.com/OISF/libhtp/security/advisories/GHSA-v3qq-h8mh-vph7(security-advisories@github.com)

IOC Correlations

No correlations recorded

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