rootpwn

high · CVSS v3 7.5

CVE-2026-57227

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Fr…

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.

Scores

Severity
high
CVSS v2
7.8
CVSS v3
7.5
CVSS v4
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EPSS
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