Where
-Infinity
0

Vendor Risk Score

See how libhtp compares to other vendors in security performance

View Risk Score →
Severity
7.5
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

First published (updated )
Severity
7.5
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

LibHTP is a security-aware parser for the HTTP protocol and the related bits and pieces. Prior to version 0.5.49, unbounded processing of HTTP request and response headers can lead to excessive CPU time and memory utilization, possibly leading to extreme slowdowns. This issue is addressed in 0.5.49.

First published (updated )
Severity
7.5
EPSS
0.04%
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

LibHTP is a security-aware parser for the HTTP protocol and the related bits and pieces. Version 0.5.46 may parse malformed request traffic, leading to excessive CPU usage. Version 0.5.47 contains a patch for the issue. No known workarounds are available.

First published (updated )
Severity
7.5
EPSS
0.04%
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

LibHTP is a security-aware parser for the HTTP protocol. Crafted traffic can cause excessive processing time of HTTP headers, leading to denial of service. This issue is addressed in 0.5.46.

First published (updated )

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203