CVE catalog
CVE-2026-31931
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 p
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.35% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | suricata | Not reported | 8.0.4 | fixed |
| Debian | suricata | 14 | 1:7.0.10-1 | vulnerable |
| Debian | suricata | 14 | 1:7.0.11-1 | vulnerable |
| Debian | suricata | 14 | 1:7.0.11-1~bpo13+1 | vulnerable |
| Debian | suricata | 14 | 1:8.0.0-1~exp1 | vulnerable |
| Debian | suricata | 14 | 1:8.0.0-1~exp2 | vulnerable |
| Debian | suricata | 14 | 1:8.0.0-1~exp4 | vulnerable |
| Debian | suricata | 14 | 1:8.0.0-1~exp5 | vulnerable |
| Debian | suricata | 14 | 1:8.0.1-1 | vulnerable |
| Debian | suricata | 14 | 1:8.0.1-2 | vulnerable |
| Debian | suricata | 14 | 1:8.0.1-3 | vulnerable |
| Debian | suricata | 14 | 1:8.0.1-3~bpo13+1 | vulnerable |
| Debian | suricata | 14 | 1:8.0.2-1 | vulnerable |
| Debian | suricata | 14 | 1:8.0.2-1~bpo13+1 | vulnerable |
| Debian | suricata | 14 | 1:8.0.3-1 | vulnerable |
| Debian | suricata | 14 | 1:8.0.3-1~bpo13+1 | vulnerable |
| Debian | suricata | 14 | 1:8.0.3-2~exp1 | vulnerable |
| Debian | suricata | 14 | 1:8.0.4-1~bpo13+1 | vulnerable |
| Debian | suricata | 14 | 1:8.0.4-1 | fixed |
| Opensuse | suricata | tumbleweed | 8.0.4-1.1 | fixed |
| Cpe | suricata | Not reported | 8.0.4 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | suricata | cpe | Not reported | 8.0.4 | Not reported | Not reported | Not reported |
| Debian | suricata | deb | 14 | 1:8.0.4-1 | Not reported | DEBIAN-CVE-2026-31931 | Not reported |
| Opensuse | suricata | rpm | tumbleweed | 8.0.4-1.1 | Not reported | OPENSUSE-SU-2026:10443-1 | Not reported |
| Cpe | suricata | cpe | Not reported | 8.0.4 | Not reported | NVD-CVE-2026-31931 | Not reported |
OpenFactory catalog packages
[openSUSE Tumbleweed]
- [libsuricata8_0_6]Unknown
Source package: [suricata]
Details (1)
8.0.6-1.2· x86_64 · tumbleweedUnknown · Fixed:
8.0.4-1.1Version impact unknown
nvd · suricata · opensuse · tumbleweed
- [suricata-devel]Unknown
Source package: [suricata]
Details (1)
8.0.6-1.2· x86_64 · tumbleweedUnknown · Fixed:
8.0.4-1.1Version impact unknown
nvd · suricata · opensuse · tumbleweed
- [suricata]Fixed
Source package: [suricata]
Details (1)
8.0.6-1.2· x86_64 · tumbleweedFixed · Fixed:
8.0.4-1.1nvd · suricata · opensuse · tumbleweed
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_10443-1.json]
- [https://github.com/OISF/suricata/security/advisories/GHSA-gr22-4784-xvw3]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-31931]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-31931]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:10443-1]
- [https://redmine.openinfosecfoundation.org/issues/8294]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-31931.json]
[FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]