CVE-2024-45797

LibHTP's unbounded header handling leads to denial service

HIGH
7.5
CVSS Score
Published: October 16, 2024 at 06:45 PM UTC
Updated: June 17, 2026 at 07:54 AM UTC
1 product affected across 1 vendorLibhtp

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Severity
HIGH7.5
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.5.49
Affected range stops below 0.5.49, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

x_refsource_CONFIRMExploitIssue TrackingPatchVendor Advisory
https://github.com/OISF/libhtp/security/advisories/GHSA-rqqp-24ch-248f
x_refsource_MISCExploitIssue TrackingPatchVendor Advisory
https://redmine.openinfosecfoundation.org/issues/7191
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2025/09/msg00009.html

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-770

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