CVE-2026-94084

Critical

Description

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.

SeverityCritical
CVSS9.4
Exploit probability—
ProductOisf Suricata
PublishedSep 20, 2026
First seenSep 20, 2026

How to fix

Update
  • oisf suricata8.0.7 or later

Affected products

ProductAffected versionsFixed in
oisf suricatav < 8.0.78.0.7

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

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