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CVE Vulnerability Details :
CVE-2026-22264
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-27 Jan, 2026 | 18:33
Updated At-28 Jan, 2026 | 14:02
Rejected At-
▼CVE Numbering Authority (CNA)
Suricata detect/alert: heap-use-after-free on alert queue expansion

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 Products
Vendor
OISF
Product
suricata
Versions
Affected
  • < 7.0.14
  • >= 8.0.0, < 8.0.3
Problem Types
TypeCWE IDDescription
CWECWE-416CWE-416: Use After Free
Type: CWE
CWE ID: CWE-416
Description: CWE-416: Use After Free
Metrics
VersionBase scoreBase severityVector
3.17.4HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Version: 3.1
Base score: 7.4
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/OISF/suricata/security/advisories/GHSA-mqr8-m3m4-2hw5
x_refsource_CONFIRM
https://github.com/OISF/suricata/commit/549d7bf60616de8e54686a188196453b5b22f715
x_refsource_MISC
https://github.com/OISF/suricata/commit/5789a3d3760dbf33d93fc56c27bd9529e5bdc8f2
x_refsource_MISC
https://github.com/OISF/suricata/commit/ac1eb394181530430fb7262969f423a1bf8f209b
x_refsource_MISC
https://redmine.openinfosecfoundation.org/issues/8190
x_refsource_MISC
Hyperlink: https://github.com/OISF/suricata/security/advisories/GHSA-mqr8-m3m4-2hw5
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/OISF/suricata/commit/549d7bf60616de8e54686a188196453b5b22f715
Resource:
x_refsource_MISC
Hyperlink: https://github.com/OISF/suricata/commit/5789a3d3760dbf33d93fc56c27bd9529e5bdc8f2
Resource:
x_refsource_MISC
Hyperlink: https://github.com/OISF/suricata/commit/ac1eb394181530430fb7262969f423a1bf8f209b
Resource:
x_refsource_MISC
Hyperlink: https://redmine.openinfosecfoundation.org/issues/8190
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found