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CVE-2026-22264

HIGH

7.4

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.

CVE Details

CVSS v3.1 Score7.4

SeverityHIGH

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

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionNONE

Published1/27/2026

Last Modified1/29/2026

Sourcenvd

Honeypot Sightings0

Affected Products

oisf:suricata

Weaknesses (CWE)

CWE-416

References

https://github.com/OISF/suricata/commit/549d7bf60616de8e54686a188196453b5b22f715(security-advisories@github.com)

https://github.com/OISF/suricata/commit/5789a3d3760dbf33d93fc56c27bd9529e5bdc8f2(security-advisories@github.com)

https://github.com/OISF/suricata/commit/ac1eb394181530430fb7262969f423a1bf8f209b(security-advisories@github.com)

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

https://redmine.openinfosecfoundation.org/issues/8190(security-advisories@github.com)

IOC Correlations

No correlations recorded

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