CVE-2025-53537
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CVSS Score
V3.1Attack Vector Metrics
Impact Metrics
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.
Available Exploits
Related News
EU Vulnerability Database
Monitored by ENISA for EU cybersecurity
ENISA Analysis
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.
Affected Products (ENISA)
ENISA Scoring
CVSS Score (3.1)
ENISA References
Data provided by ENISA EU Vulnerability Database. Last updated: July 23, 2025