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VULNERABILITIES

CVE-2026-57227 Details

Description

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 7.0.0 until 7.0.17 and 8.0.6, the MQTT parser in rust/src/mqtt/mqtt.rs permits repeated PUBREC or PUBREL messages to be appended to one transaction without a limit. Crafted MQTT traffic can grow transaction state indefinitely, consuming CPU and memory and causing slowdown or denial of service. This issue is fixed in versions 8.0.6 and 7.0.17.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/OISF/suricata/commit/03ba8a71d827dd36a0ceb512f45d2f440f260a3a [email protected]
https://github.com/OISF/suricata/commit/5cde93dea38533c9b225128ba9d54955997dc273 [email protected]
https://github.com/OISF/suricata/commit/c03666d261256df5a2d1f5800872da8a5addf6a5 [email protected]
https://github.com/OISF/suricata/releases/tag/suricata-7.0.17 [email protected]
https://github.com/OISF/suricata/releases/tag/suricata-8.0.6 [email protected]

see all 7 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-400Uncontrolled Resource Consumption[email protected]
CWE-770Allocation of Resources Without Limits or Throttling[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-57227
NVD Published Date:
Sep 18, 2026
NVD Last Modified:
Sep 23, 2026
Source:
[email protected]
CVE-2026-57227 Details - Not Deferred