Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-57220

RabbitMQ is a messaging and streaming broker. Prior to 4.2.6, the RabbitMQ stream listener does not enforce the configured stream frame-size limit while assembling frames during authentication and before Tune negotiation, allowing an unauthenticated remote client to declare oversized frame lengths and consume broker memory in rabbit_stream_core. This issue is fixed in version 4.2.6.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 34.6%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2026-57220


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