CVE-2026-57222
Suricata ippair: hash collision can cause incorrect state reuse across IPv4 and IPv6
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Description
Suricata 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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://github.com/OISF/suricata/security/advisories/GHSA-2r8x-23fw-hgcg
- https://github.com/OISF/suricata/commit/4a728464e6eb9e273bb02e3df0c28929b28db71d
- https://github.com/OISF/suricata/commit/9d788575c5d22a34eeed50d56557ed12b05e0aec
- https://github.com/OISF/suricata/commit/c92e270c4a795c52bce610aa1ce9ebaf065c49e6
References (7)
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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
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