---
id: CVE-2026-57226
title: >-
  Suricata is a network Intrusion Detection System, Intrusion Prevention System
  and Network Security Monitoring engine
summary: >-
  Suricata is a network Intrusion Detection System, Intrusion Prevention System
  and Network Security Monitoring engine. Prior to 7.0.17 and 8.0.6, HTTP SWF
  decompression with the non-default swf-decompression feature and an unsafe
  decompre…
severity: low
cvss: 3.7
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-122
  - CWE-190
vendor: OISF
product: suricata
affected:
  - 'suricata >= 8.0.0, < 8.0.6'
  - suricata < 7.0.17
published: '2026-09-18'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T18:25:00.707'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-57226'
references:
  - url: >-
      https://github.com/OISF/suricata/commit/82af0aeb7cec39e206a9ca96c4966425eddeaa74
    label: security-advisories@github.com
  - url: >-
      https://github.com/OISF/suricata/commit/b63224871b0f8b0b1f7b8c22d05ba8a5c5f69fbb
    label: security-advisories@github.com
  - url: >-
      https://github.com/OISF/suricata/commit/d9fae18432501674338e28bd33e35788c95d4a98
    label: security-advisories@github.com
  - url: 'https://github.com/OISF/suricata/pull/15704'
    label: security-advisories@github.com
  - url: 'https://github.com/OISF/suricata/releases/tag/suricata-7.0.17'
    label: security-advisories@github.com
  - url: 'https://github.com/OISF/suricata/releases/tag/suricata-8.0.6'
    label: security-advisories@github.com
  - url: 'https://github.com/OISF/suricata/security/advisories/GHSA-p33j-r48q-3jcf'
    label: security-advisories@github.com
  - url: 'https://redmine.openinfosecfoundation.org/issues/8642'
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
epss: 0.00552
epssPercentile: 0.43797
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-22T15:45:40.054734Z'
ingestedAt: '2026-09-18T20:51:25.674Z'
---

## Overview

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.17 and 8.0.6, HTTP SWF decompression with the non-default swf-decompression feature and an unsafe decompress-depth can use the configured depth when allocating in src/util-file-decompression.c instead of limiting the allocation to the Flash file's actual data requirement. A crafted SWF response can therefore trigger an integer-related heap buffer overflow and crash Suricata; the default disabled feature and default depth are not affected. This issue is fixed in versions 8.0.6 and 7.0.17.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.