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.
References (2)
Core 2
Core References
Mitigation, Vendor Advisory x_refsource_confirm
https://github.com/OISF/libhtp/security/advisories/GHSA-v3qq-h8mh-vph7
Patch x_refsource_misc
https://github.com/OISF/libhtp/commit/9037ea35110a0d97be5cedf8d31fb4cd9a38c7a7
Scores
CVSS v3
7.5
EPSS
0.0040
EPSS Percentile
31.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-401
Status
published
Products (1)
oisf/libhtp
< 0.5.51
Published
Jul 23, 2025
Tracked Since
Feb 18, 2026