Suricata ippair: hash collision can cause incorrect state reuse across IPv4 and IPv6

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Summary

CVECVE-2026-57222
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-18 20:17:17 UTC
Updated2026-09-29 12:48:22 UTC
DescriptionSuricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.17 and 8.0.6, crafted IPv4 and IPv6 address pairs can collide in the IPPair hash because src/ippair.c did not compare the IP address family before reusing IPPair-backed state. This can apply state from one IP family to another for xbits track ip_pair, FTP data expectations, and, on the 7.0 release line, thresholding, detection_filter, and rate_filter rules using track by_both, causing incorrect detection state. This issue is fixed in versions 8.0.6 and 7.0.17.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

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

EPSS: 0.004420000 probability, percentile 0.356600000 (date 2026-09-24)

Problem Types: CWE-697 | CWE-697 CWE-697: Incorrect Comparison

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Oisf Suricata All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA OISF Suricata affected >= 8.0.0, < 8.0.6 Not specified
CNA OISF Suricata affected < 7.0.17 Not specified

References

ReferenceSourceLinkTags
github.com/OISF/suricata/releases/tag/suricata-8.0.6 [email protected] github.com Release Notes
redmine.openinfosecfoundation.org/issues/8559 [email protected] redmine.openinfosecfoundation.org Permissions Required
github.com/OISF/suricata/security/advisories/GHSA-2r8x-23fw-hgcg [email protected] github.com Vendor Advisory
github.com/OISF/suricata/commit/9d788575c5d22a34eeed50d56557ed12b05e0aec [email protected] github.com Patch
github.com/OISF/suricata/commit/c92e270c4a795c52bce610aa1ce9ebaf065c49e6 [email protected] github.com Patch
github.com/OISF/suricata/releases/tag/suricata-7.0.17 [email protected] github.com Release Notes
github.com/OISF/suricata/commit/4a728464e6eb9e273bb02e3df0c28929b28db71d [email protected] github.com Patch
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