CVE-2026-63449

LOW 3.7

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

CVSS Score

3.7

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-197
Vendor	oisf
Product	suricata
Published	Sep 18, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Affected Versions

OISF / suricata

>= 8.0.0, < 8.0.6

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/OISF/suricata/security/advisories/GHSA-prqx-q74v-wxhv github.com: https://github.com/OISF/suricata/pull/15807 github.com: https://github.com/OISF/suricata/commit/499995bf0e5eab34b647ec1024ce65d72c411816 github.com: https://github.com/OISF/suricata/commit/6f87930aff1e2294e46289cb9cbf4d96d79a209a github.com: https://github.com/OISF/suricata/releases/tag/suricata-8.0.6 redmine.openinfosecfoundation.org: https://redmine.openinfosecfoundation.org/issues/8582