What is CVE-2026-31935?

CVE-2026-31935 is a high-severity vulnerability in Oisf Suricata, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-04-02.

How severe is CVE-2026-31935?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Oisf Suricata

CVE-2026-31935

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…

Vulnerability class: DoS (Denial of Service)

EPSS: 0.001 (17.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Oisf Suricata — versions < 7.0.15, >= 8.0.0, < 8.0.4

Weakness classification (CWE)

References

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

Frequently asked questions

What is CVE-2026-31935?: CVE-2026-31935 is a high-severity vulnerability in Oisf Suricata, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-04-02.
How severe is CVE-2026-31935?: High severity. CVSS v3 base score is 7.5 out of 10.