Use-after-free in Suricata - CVE-2026-22264
Published: January 28, 2026
Vulnerability identifier: #VU122105
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-22264
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Open Information Security Foundation
Affected software:
Suricata
Suricata
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within alert queue expansion. A remote attacker can affect integrity and availability on the target application
How to mitigate CVE-2026-22264
Install updates from vendor's website.