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Critical 9.4Published Sep 20, 2026

CVE-2026-94084Suricata 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.

Updated under an hour ago ()

Does this affect you?

It affects OISF Suricata. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
9.4 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Weakness (CWE)
CWE-416
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
mitre
NVD analysis
Analyzed
Record last updated
Sep 22, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
OISF Suricata
oisf:suricata (from the name)
before 8.0.7
CNA record
oisf suricata
oisf:suricata
before 8.0.7
NVD

References

  • release-notes
  • patch
  • release-notes

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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