---
id: CVE-2026-63449
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. From 8.0.0 until 8.0.6, the SIP parser
  in rust/src/sip/parser.rs stores request and response body lengths in 16-bit
  fie…
severity: low
cvss: 3.7
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-197
vendor: OISF
product: suricata
affected:
  - 'suricata >= 8.0.0, < 8.0.6'
published: '2026-09-18'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T18:12:04.247'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-63449'
references:
  - url: >-
      https://github.com/OISF/suricata/commit/499995bf0e5eab34b647ec1024ce65d72c411816
    label: security-advisories@github.com
  - url: >-
      https://github.com/OISF/suricata/commit/6f87930aff1e2294e46289cb9cbf4d96d79a209a
    label: security-advisories@github.com
  - url: 'https://github.com/OISF/suricata/pull/15807'
    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-prqx-q74v-wxhv'
    label: security-advisories@github.com
  - url: 'https://redmine.openinfosecfoundation.org/issues/8582'
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
epss: 0.00245
epssPercentile: 0.16037
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-21T19:40:15.263931Z'
ingestedAt: '2026-09-18T20:51:25.800Z'
---

## Overview

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, the SIP parser in rust/src/sip/parser.rs stores request and response body lengths in 16-bit fields. A SIP body larger than 65,536 bytes can truncate the length and prevent frame:request.body or frame:response.body from exposing the complete body to inspection, allowing content in the omitted portion to evade frame-based detection. This issue is fixed in version 8.0.6.

## Remediation

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