CVE-2026-31931: Suricata tls: null dereference in tls.alpn rule keyword

Published Apr 2, 2026

Updated

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.

Affected Software

1 affected component

OISF Suricata>=8.0.0<8.0.4

Event History

Apr 2, 2026

CVE Published

via MITRE·02:01 PM

Data Sourced

via MITRE·02:01 PM

DescriptionSeverityWeakness

Data Sourced

via NVD·02:16 PM

DescriptionSeverityWeaknessAffected Software

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

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