CVE-2026-94083 in Suricata

Sumário

de MITRE • 20/09/2026

Suricata before 8.0.7 has a DoH2 type confusion that can cause an invalid free, because cleanup code for the HTTP2 state is executed even though the actual state is HTTP1 (when there is a DoH2 request with an HTTP1 to HTTP2 upgrade). This requires app-layer.protocols.doh2 to be enabled, which is the default in 8.x versions.

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• Responsável: MITRE
• Reservar: 20/09/2026
• Divulgação: 20/09/2026
• Moderação: aceite
• Entrada: VDB-407991
• CPE: pronto
• CWE: CWE-843 (confirmado)
• CVSS: 9.4 (CNA)
• EPSS: 0.00000
• KEV: não
• Atividades: muito baixo

Fontes

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-94083
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-94083
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-94083/