CVE-2026-63449

Suricata sip: large SIP message bodies can evade detection with frame keyword

MEDIUM
5.3
CVSS Score
Published: September 18, 2026 at 08:12 PM UTC
Updated: September 28, 2026 at 06:33 PM UTC
1 product affected across 1 vendorSuricata

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 8.0.68.0.0 ≤ v < 8.0.6
Affected range stops below 8.0.6, so it looks safe — our inference, not a vendor statement

References (6)

x_refsource_CONFIRMVendor Advisory
Source: cverecord
https://github.com/OISF/suricata/security/advisories/GHSA-prqx-q74v-wxhv
x_refsource_MISCPatch
Source: cverecord
https://github.com/OISF/suricata/pull/15807
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/OISF/suricata/releases/tag/suricata-8.0.6
x_refsource_MISCPermissions Required
Source: cverecord
https://redmine.openinfosecfoundation.org/issues/8582

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-197

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