CVE-2026-22264
Suricata detect/alert: heap-use-after-free on alert queue expansion
Description
Suricata is a network IDS, IPS and NSM engine. Prior to version 8.0.3 and 7.0.14, an unsigned integer overflow can lead to a heap use-after-free condition when generating excessive amounts of alerts for a single packet. Versions 8.0.3 and 7.0.14 contain a patch. As a workaround, do not run untrusted rulesets or run with less than 65536 signatures that can match on the same packet.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:HAttack ComplexityHigh
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:NConfidentialityNone
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
Open Information Security Foundation
oss-projectaka ofis, libhtp, suricata
ООО "Айдеко Софтвер"
commercial·RUaka айде́ко софтвер, aidco software
OISF
oss-projectaka suricata-update, suricata, libhtp
and 1 more affected products View all →
Exploitability
Official Patch Available
Attack Graph
Products CVE Techniques Tactics
Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.
MITRE ATT&CK
2 techniques Initial Access
Privilege Escalation
References
https://github.com/OISF/suricata/commit/549d7bf60616de8e54686a188196453b5b22f715
github.com
https://github.com/OISF/suricata/commit/5789a3d3760dbf33d93fc56c27bd9529e5bdc8f2
github.com
https://github.com/OISF/suricata/commit/ac1eb394181530430fb7262969f423a1bf8f209b
github.com
and 3 more references View all →
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