CVE-2026-22264

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.

CVSS v3 7.4 HIGH

7.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/OISF/suricata/commit/549d7bf60616de8e54686a188196453b5b22f715	Patch
https://github.com/OISF/suricata/commit/5789a3d3760dbf33d93fc56c27bd9529e5bdc8f2	Patch
https://github.com/OISF/suricata/commit/ac1eb394181530430fb7262969f423a1bf8f209b	Patch
https://github.com/OISF/suricata/security/advisories/GHSA-mqr8-m3m4-2hw5	Vendor Advisory
https://redmine.openinfosecfoundation.org/issues/8190	Permissions Required

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:oisf:suricata::::::::
	cpe:2.3:a:oisf:suricata::::::::

History

No history.

Information

Published : 2026-01-27 19:16

Updated : 2026-01-29 20:58

NVD link : CVE-2026-22264

Mitre link : CVE-2026-22264

CVE.ORG link : CVE-2026-22264

JSON object : View

Products Affected

oisf

suricata

CWE

CWE-416

Use After Free

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