CVE-2026-31931

high

Description

Suricata is a network IDS, IPS and NSM engine. From version 8.0.0 to before version 8.0.4, use of the "tls.alpn" rule keyword can cause Suricata to crash with a NULL dereference. This issue has been patched in version 8.0.4.

References

https://redmine.openinfosecfoundation.org/issues/8294

https://github.com/OISF/suricata/security/advisories/GHSA-gr22-4784-xvw3

Details

Source: Mitre, NVD

Published: 2026-04-02

Updated: 2026-04-02

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H