Incorrect Comparison in Suricata - CVE-2026-57222
Published: July 22, 2026
Vulnerability identifier: #VU139051
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-57222
CWE-ID: CWE-697
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause incorrect state reuse across IPv4 and IPv6 address pairs.
The vulnerability exists due to incorrect comparison in IPPair-backed state handling when processing crafted IPv4 and IPv6 address pairs. A remote attacker can send crafted traffic to cause incorrect state reuse across IPv4 and IPv6 address pairs.
This affects xbits track ip_pair, app-layer expectations such as FTP data expectations, and in 7.0.x also thresholding, detection_filter, rate_filter using track by_both.
Affected software
Suricata
How to mitigate CVE-2026-57222
Install security update from vendor's website.
Suricata - addressed in versions 7.0.17, 8.0.6