CVE-2026-31935

Suricata http2: unbounded resource consumption

State: Published
Severity: 7.5 High
Published: Apr 2, 2026
Updated: Apr 2, 2026
Reserved: Mar 10, 2026

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	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	GitHub_M

Weaknesses

CWE-400 Uncontrolled Resource Consumption
CWE-770 Allocation of Resources Without Limits or Throttling

Affected Products

Product	Versions
suricataOISF	< 7.0.15Affected >= 8.0.0, < 8.0.4Affected

References

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