---
title: "CVE-2026-94084: Suricata - Use After Free"
description: "Suricata < 8.0.7 contains a use-after-free vulnerability caused by improper handling of Http2ThreadMultiBuf during inspection of transactions by rules using http.response_header with and without a transform, letting attackers cause memory corruption or denial of service, exploit requires crafted rules triggering the condition."
url: https://panop.io/threat-heartbeat/CVE-2026-94084/
---

# CVE-2026-94084 Suricata - Use After Free

Suricata < 8.0.7 contains a use-after-free vulnerability caused by improper handling of Http2ThreadMultiBuf during inspection of transactions by rules using http.response\_header with and without a transform, letting attackers cause memory corruption or denial of service, exploit requires crafted rules triggering the condition.

CVSS base score 9.4 /10

Critical

CISA KEV

Not listed

Public exploit

None known

EPSS

0.54% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-94084)

## Details

Type

Use After Free

Impact

Denial Of Service, Remote Code Execution

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Published

20 September 2026

Updated

15 October 2026

Weakness

[CWE-416](https://cwe.mitre.org/data/definitions/416.html)

## Vendor fix

Upgrade to version 8.0.7 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-94084](https://nvd.nist.gov/vuln/detail/CVE-2026-94084)
- [https://forum.suricata.io/t/suricata-8-0-7-released/6467](https://forum.suricata.io/t/suricata-8-0-7-released/6467)
- [https://github.com/OISF/suricata/commit/1d66355dc8737bb2ae7a198115b3067e3ad49808](https://github.com/OISF/suricata/commit/1d66355dc8737bb2ae7a198115b3067e3ad49808)
- [https://github.com/OISF/suricata/compare/suricata-8.0.6...suricata-8.0.7](https://github.com/OISF/suricata/compare/suricata-8.0.6...suricata-8.0.7)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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