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Libhtp

libhtp

Vendor: Oisf • 7 CVEs

CVEs (7)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Oisf
1Libhtp
Aug 5, 2025
Jul 23, 2025
N/A· v4
7.5 HIGH· v3
N/A· v2
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 visi...Show more
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.Show less
1Oisf
1Libhtp
Nov 3, 2025
Oct 16, 2024
N/A· v4
7.5 HIGH· v3
N/A· v2
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 utiliz...Show more
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.Show less
1Oisf
1Libhtp
Jun 30, 2025
Apr 4, 2024
N/A· v4
7.5 HIGH· v3
N/A· v2
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....Show more
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.Show less
2Fedoraproject
Oisf
2Fedora
Libhtp
Nov 3, 2025
Feb 26, 2024
N/A· v4
7.5 HIGH· v3
N/A· v2
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.
2Oisf
Suricata Ids
2Libhtp
Suricata
Nov 21, 2024
Oct 10, 2019
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
In OISF LibHTP before 0.5.31, as used in Suricata 4.1.4 and other products, an HTTP protocol parsing error causes the http_header signature to not alert on a response with a single \r\n ending.
1Oisf
1Libhtp
Nov 21, 2024
Apr 4, 2019
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
htp_parse_authorization_digest in htp_parsers.c in LibHTP 0.5.26 allows remote attackers to cause a heap-based buffer over-read via an authorization digest header.
1Oisf
1Libhtp
May 13, 2026
Aug 28, 2017
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
libhtp 0.5.15 allows remote attackers to cause a denial of service (NULL pointer dereference).