High severity7.5NVD Advisory· Published Apr 2, 2026· Updated Apr 7, 2026

CVE-2026-31931

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Oisf/Suricata2 versions
cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*range: >=8.0.0,<8.0.4
- (no CPE)range: >=8.0.0, <8.0.4
osv-coords
pkg:rpm/opensuse/suricata&distro=openSUSE%20Tumbleweed
Range: < 8.0.4-1.1

Patches

Vulnerability mechanics

References

github.com/OISF/suricata/security/advisories/GHSA-gr22-4784-xvw3nvdVendor Advisory
redmine.openinfosecfoundation.org/issues/8294nvdIssue TrackingPermissions Required

News mentions

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