CVE-2026-22264

Published: Jan 27, 2026Modified: Jun 17, 2026

9.1

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Exploitability: 3.9 / Impact: 5.2

Source: NVD

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.

Affected (2)

Products: Oisf: Suricata

1 product

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Oisf Suricata	Before 7.0.14
Oisf Suricata	From 8.0.0 to 8.0.3

Related CWEs

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (5)

https://github.com/OISF/suricata/commit/549d7bf60616de8e54686a188196453b5b22f715

Source: security-advisories@github.com

Patch

https://github.com/OISF/suricata/commit/5789a3d3760dbf33d93fc56c27bd9529e5bdc8f2

Source: security-advisories@github.com

Patch

https://github.com/OISF/suricata/commit/ac1eb394181530430fb7262969f423a1bf8f209b

Source: security-advisories@github.com

Patch

https://github.com/OISF/suricata/security/advisories/GHSA-mqr8-m3m4-2hw5

Source: security-advisories@github.com

Vendor Advisory

https://redmine.openinfosecfoundation.org/issues/8190

Source: security-advisories@github.com

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Timeline

No history available yet.