CVE-2024-45797

LibHTP's unbounded header handling leads to denial service

Published Oct 16, 2024 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4295-1 libhtp security update
EUVD EUVD EUVD-2024-41605 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.
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00224}

epss

{'score': 0.00243}

Type Values Removed Values Added
Metrics epss

{'score': 0.00201}

epss

{'score': 0.00224}

Type Values Removed Values Added
First Time appeared Oisf
Oisf libhtp
CPEs cpe:2.3:a:oisf:libhtp:*:*:*:*:*:*:*:*
Vendors & Products Oisf
Oisf libhtp
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title LibHTP's unbounded header handling leads to denial service
Weaknesses CWE-770
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Nov 3, 2025, 6:08 PM
Reserved
Sep 9, 2024, 2:23 PM
Status
Modified
Published
Oct 16, 2024, 7:15 PM
Modified
Jun 17, 2026, 7:54 AM