CVE-2026-31935

HIGH

Suricata http2: unbounded resource consumption

Title source: cna
STIX 2.1

Description

Suricata is a network IDS, IPS and NSM engine. Prior to versions 7.0.15 and 8.0.4, flooding of craft HTTP2 continuation frames can lead to memory exhaustion, usually resulting in the Suricata process being shut down by the operating system. This issue has been patched in versions 7.0.15 and 8.0.4.

Scores

CVSS v3 7.5
EPSS 0.0005
EPSS Percentile 15.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-400 CWE-770
Status published
Products (3)
oisf/suricata < 7.0.15
OISF/suricata < 7.0.15
OISF/suricata >= 8.0.0, < 8.0.4
Published Apr 02, 2026
Tracked Since Apr 02, 2026