CVE-2024-32663 HIGH

CVE-2024-32663: Suricata 's http2 parser contains an improper compressed header handling can lead to resource starvation

Vendor Oisf
Product suricata
Weakness CWE-400
Published May 7, 2024
Last update November 3, 2025
View on NVD All CVEs

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.5 and 6.0.19, a small amount of HTTP/2 traffic can lead to Suricata using a large amount of memory. The issue has been addressed in Suricata 7.0.5 and 6.0.19. Workarounds include disabling the HTTP/2 parser and reducing `app-layer.protocols.http2.max-table-size` value (default is 65536).

Key dates

02Disclosure timeline

May 7, 2024 CVE published
November 3, 2025 Record updated