CVE-2026-31931

EUVD-2026-18237
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 28.19%
Affected Products (NVD)
VendorProductVersion
oisfsuricata
8.0.0 ≤
𝑥
< 8.0.4
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
suricata
bullseye
1:6.0.1-3
fixed
bullseye (security)
1:6.0.1-3+deb11u1
fixed
forky
1:8.0.6-1
fixed
sid
1:8.0.6-1
fixed
trixie
1:7.0.10-1+deb13u4
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
suricata
bionic
needs-triage
jammy
needs-triage
noble
needs-triage
questing
ignored
resolute
needs-triage
xenial
ignored
Common Weakness Enumeration
References
https://github.com/OISF/suricata/security/advisories/GHSA-gr22-4784-xvw3
https://redmine.openinfosecfoundation.org/issues/8294