Vulnerability · Published Apr 2, 2026 · Assigned by GitHub_M

CVE-2026-31935Suricata http2: unbounded resource consumption

High 7.5

In plain English

A high-severity uncontrolled resource consumption in suricata from OISF. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.3%top 79.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Alpine:v3.24	suricata	8.0.6-r0	ALPINE-CVE-2026-31935
Debian:13	suricata	1:7.0.10-1+deb13u4	DEBIAN-CVE-2026-31935
Debian:14	suricata	1:8.0.4-1	DEBIAN-CVE-2026-31935
Ubuntu:22.04:LTS	suricata	no fix listed	UBUNTU-CVE-2026-31935
Ubuntu:24.04:LTS	suricata	no fix listed	UBUNTU-CVE-2026-31935
Ubuntu:25.10	suricata	no fix listed	UBUNTU-CVE-2026-31935
Ubuntu:26.04:LTS	suricata	no fix listed	UBUNTU-CVE-2026-31935
Ubuntu:26.10	suricata	no fix listed	UBUNTU-CVE-2026-31935

Affected products (as reported)

Vendor	Product	Versions
OISF	suricata	< 7.0.15>= 8.0.0, < 8.0.4

Weakness: CWE-400, CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

https://github.com/OISF/suricata/security/advisories/GHSA-vxrp-5pg7-7v4x x_refsource_CONFIRM
https://redmine.openinfosecfoundation.org/issues/8289 x_refsource_MISC