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Vulnerability record · CVE-2024-28871 · published 4 April 2024

CVE-2024-28871: Oisf libhtp allocation without limits vulnerability

Oisf · Libhtp

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.

7.5 CVSS 3.1 High EPSS 0.84% · top 43.3% CWE-770 · Allocation without limits
7.5CVSS 3.1 base score
0.84%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/OISF/libhtp/commit/79e713f3e527593a45f545e854cd9e6fbb3cd3ed Patch
https://github.com/OISF/libhtp/commit/bf618ec7f243cebfb0f7e84c3cb158955cb32b4d Patch
https://github.com/OISF/libhtp/security/advisories/GHSA-ffr2-45w9-7wmg Vendor Advisory
https://redmine.openinfosecfoundation.org/issues/6757 Issue Tracking
https://github.com/OISF/libhtp/commit/79e713f3e527593a45f545e854cd9e6fbb3cd3ed Patch
https://github.com/OISF/libhtp/commit/bf618ec7f243cebfb0f7e84c3cb158955cb32b4d Patch
https://github.com/OISF/libhtp/security/advisories/GHSA-ffr2-45w9-7wmg Vendor Advisory
https://redmine.openinfosecfoundation.org/issues/6757 Issue Tracking

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2024-28871), CISA KEV, FIRST EPSS (scores of 2026-10-10). This page is refreshed as NVD updates the record.