NULL Pointer Dereference Affecting suricata package, versions <8.0.6-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.47% (38th percentile)

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  • Snyk IDSNYK-ALPINE324-SURICATA-19430382
  • published30 Aug 2026
  • disclosed2 Apr 2026

Introduced: 2 Apr 2026

CVE-2026-31931  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Alpine:3.24 suricata to version 8.0.6-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream suricata package and not the suricata package as distributed by Alpine. See How to fix? for Alpine:3.24 relevant fixed versions and status.

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.