CVE-2026-57227
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| OISF | suricata | >= 8.0.0, < 8.0.6 | affected |
| OISF | suricata | >= 7.0.0, < 7.0.17 | affected |
Weaknesses
- CWE-400: CWE-400: Uncontrolled Resource Consumption
- CWE-770: CWE-770: Allocation of Resources Without Limits or Throttling
References
- https://github.com/OISF/suricata/security/advisories/GHSA-7h2h-hpj2-9w6p
- https://github.com/OISF/suricata/commit/03ba8a71d827dd36a0ceb512f45d2f440f260a3a
- https://github.com/OISF/suricata/commit/5cde93dea38533c9b225128ba9d54955997dc273
- https://github.com/OISF/suricata/commit/c03666d261256df5a2d1f5800872da8a5addf6a5
- https://github.com/OISF/suricata/releases/tag/suricata-7.0.17
- https://github.com/OISF/suricata/releases/tag/suricata-8.0.6
- https://redmine.openinfosecfoundation.org/issues/8525
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