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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 patched in version 8.0.4.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:cb051f1f9417e31ad9680d0a80d45584faa4e750b8f8c60b1b8d190401e9c23f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"suricata","vendor":"OISF","versions":[{"status":"affected","version":">= 8.0.0, < 8.0.4"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:763d27a4f7c9da66d3d4d0e7c894460a9a99264af7edd93763a185b9812a7957 · sha256:1cc5843e36bce89c… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:763d27a4f7c9da66d3d4d0e7c894460a9a99264af7edd93763a185b9812a7957 · sha256:1cc5843e36bce89c… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-476","description":"CWE-476: NULL Pointer Dereference","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:763d27a4f7c9da66d3d4d0e7c894460a9a99264af7edd93763a185b9812a7957 · sha256:1cc5843e36bce89c… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/OISF/suricata/security/advisories/GHSA-gr22-4784-xvw3","tags":["x_refsource_CONFIRM"],"url":"https://github.com/OISF/suricata/security/advisories/GHSA-gr22-4784-xvw3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:763d27a4f7c9da66d3d4d0e7c894460a9a99264af7edd93763a185b9812a7957 · sha256:1cc5843e36bce89c… · /containers/cna/references/0
{"name":"https://redmine.openinfosecfoundation.org/issues/8294","tags":["x_refsource_MISC"],"url":"https://redmine.openinfosecfoundation.org/issues/8294"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:763d27a4f7c9da66d3d4d0e7c894460a9a99264af7edd93763a185b9812a7957 · sha256:1cc5843e36bce89c… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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