Resource exhaustion in libhtp - CVE-2024-28871
Published: October 10, 2025
Vulnerability identifier: #VU116899
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2024-28871
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources when parsing HTTP headers. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
Affected software
libhtp
Ubuntu
libhtp (Ubuntu package)
Ubuntu
libhtp (Ubuntu package)
How to mitigate CVE-2024-28871
Install updates from vendor's website.
libhtp - update to 0.5.47
libhtp (Ubuntu package) - addressed in versions 0.5.15-1ubuntu0.1~esm1, 1:0.5.26-1ubuntu0.1~esm1, 1:0.5.32-1ubuntu0.1~esm1, 1:0.5.39-1ubuntu0.1~esm1, 1:0.5.46-1ubuntu2+esm1, 1:0.5.49-1ubuntu0.1
libhtp (Ubuntu package) - addressed in versions 0.5.15-1ubuntu0.1~esm1, 1:0.5.26-1ubuntu0.1~esm1, 1:0.5.32-1ubuntu0.1~esm1, 1:0.5.39-1ubuntu0.1~esm1, 1:0.5.46-1ubuntu2+esm1, 1:0.5.49-1ubuntu0.1