CVEvulnerability
CVE-2026-57227
7.5 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-09-18
- Last modified
- 2026-09-29
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-400, CWE-770
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.
Affected configurations
• oisf suricata (>= 7.0.0 < 7.0.17)
• oisf suricata (>= 8.0.0 < 8.0.6)
Related
References
- https://github.com/OISF/suricata/commit/03ba8a71d827dd36a0ceb512f45d2f440f260a3a Patch
- https://github.com/OISF/suricata/commit/5cde93dea38533c9b225128ba9d54955997dc273 Patch
- https://github.com/OISF/suricata/commit/c03666d261256df5a2d1f5800872da8a5addf6a5 Patch
- https://github.com/OISF/suricata/releases/tag/suricata-7.0.17 Release Notes
- https://github.com/OISF/suricata/releases/tag/suricata-8.0.6 Release Notes
- https://github.com/OISF/suricata/security/advisories/GHSA-7h2h-hpj2-9w6p Mitigation, Vendor Advisory
- https://redmine.openinfosecfoundation.org/issues/8525 Permissions Required