What is CVE-2026-94084?

CVE-2026-94084 is a critical-severity vulnerability in Oisf Suricata, classified under Use After Free. CVSS score: 9.4/10. Published 2026-09-20.

How severe is CVE-2026-94084?

Critical severity. CVSS v3 base score is 9.4 out of 10.

Use After Free in Oisf Suricata

CVE-2026-94084

Suricata before 8.0.7 has an Http2ThreadMultiBuf use-after-free when a transaction is inspected by rules that use http.response_header with and without a transform.

Vulnerability class: Use-After-Free

CVSS v3 metric

CVSS v3 base score 9.4 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L.

Affected products

Oisf Suricata

Weakness classification (CWE)

CWE-416 — Use After Free

References

cve@mitre.org
cve@mitre.org
cve@mitre.org

Frequently asked questions

What is CVE-2026-94084?: CVE-2026-94084 is a critical-severity vulnerability in Oisf Suricata, classified under Use After Free. CVSS score: 9.4/10. Published 2026-09-20.
How severe is CVE-2026-94084?: Critical severity. CVSS v3 base score is 9.4 out of 10.