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.
History

Wed, 28 Jan 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 28 Jan 2026 12:30:00 +0000

Type Values Removed Values Added
First Time appeared Oisf
Oisf suricata
Vendors & Products Oisf
Oisf suricata

Tue, 27 Jan 2026 18:45:00 +0000

Type Values Removed Values Added
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.
Title Suricata detect/alert: heap-use-after-free on alert queue expansion
Weaknesses CWE-416
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-01-27T18:33:50.354Z

Updated: 2026-01-28T14:02:38.233Z

Reserved: 2026-01-07T05:19:12.923Z

Link: CVE-2026-22264

cve-icon Vulnrichment

Updated: 2026-01-28T14:02:34.288Z

cve-icon NVD

Status : Received

Published: 2026-01-27T19:16:14.640

Modified: 2026-01-27T19:16:14.640

Link: CVE-2026-22264

cve-icon Redhat

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