What’s Vulnerable › Vulnerabilities

CVE-2024-28871: Excessive CPU used on malformed traffic

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-04-04 · updated 2026-06-17
• Weakness: CWE-770

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.

Affected products

• OISF libhtp: 0.5.46

References

• https://github.com/OISF/libhtp/commit/79e713f3e527593a45f545e854cd9e6fbb3cd3ed
• https://github.com/OISF/libhtp/commit/bf618ec7f243cebfb0f7e84c3cb158955cb32b4d
• https://github.com/OISF/libhtp/security/advisories/GHSA-ffr2-45w9-7wmg
• https://redmine.openinfosecfoundation.org/issues/6757
• https://github.com/OISF/libhtp/commit/79e713f3e527593a45f545e854cd9e6fbb3cd3ed
• https://github.com/OISF/libhtp/commit/bf618ec7f243cebfb0f7e84c3cb158955cb32b4d
• https://github.com/OISF/libhtp/security/advisories/GHSA-ffr2-45w9-7wmg
• https://redmine.openinfosecfoundation.org/issues/6757

Get alerted when CVE-2024-28871 or the next vulnerability affects your stack