CVE-2026-22264

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.

PUBLISHED Reserved 2026-01-07 | Published 2026-01-27 | Updated 2026-01-28 | Assigner GitHub_M

Problem types

CWE-416: Use After Free

Product status

References

github.com/...ricata/security/advisories/GHSA-mqr8-m3m4-2hw5

github.com/...ommit/549d7bf60616de8e54686a188196453b5b22f715

github.com/...ommit/5789a3d3760dbf33d93fc56c27bd9529e5bdc8f2

github.com/...ommit/ac1eb394181530430fb7262969f423a1bf8f209b

redmine.openinfosecfoundation.org/issues/8190

cve.org (CVE-2026-22264)

nvd.nist.gov (CVE-2026-22264)

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