VulnerabilityAnalyzed

CVE-2026-31935

Suricata is a network IDS, IPS and NSM engine.

HIGH 7.5EPSS 0.27%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.27%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.27% probability · 20th percentile
CISA KEV: Not listed
Weakness: CWE-400, CWE-770
Affected: oisf/suricata
Source: security-advisories@github.com

References

https://github.com/OISF/suricata/security/advisories/GHSA-vxrp-5pg7-7v4xVendor Advisory
https://redmine.openinfosecfoundation.org/issues/8289Issue Tracking, Permissions Required

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.