CVE-2026-66080

RabbitMQ is a messaging and streaming broker. Prior to versions 4.1.11, 4.2.6, and 4.3.0, validatepartitions only checks that the requested partition count is at least 1, with no upper bound. A large count such as lists:seq0, 500000000 allocates roughly 8GB. Preconditions include The...

PT-2026-97559

Name of the Vulnerable Software and Affected Versions RabbitMQ versions prior to 3.13.15 RabbitMQ versions prior to 4.0.20 RabbitMQ versions prior to 4.1.11 RabbitMQ versions prior to 4.2.6 RabbitMQ versions prior to 4.3.1 Description An authenticated stream client with read access to any stream...

PT-2026-97563

Name of the Vulnerable Software and Affected Versions RabbitMQ versions prior to 4.1.11 RabbitMQ versions prior to 4.2.6 RabbitMQ versions prior to 4.3.0 Description An issue exists in the validate partitions function where it only verifies that the requested partition count is at least 1, withou...

PT-2026-97579

Name of the Vulnerable Software and Affected Versions RabbitMQ versions prior to 4.0.22 RabbitMQ versions prior to 4.1.11 RabbitMQ versions prior to 4.2.6 RabbitMQ versions prior to 4.3.0 Description An issue exists in the HTTP handler of the rabbitmq stream management plugin where the accept...

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 length...

CVE-2026-57220 RabbitMQ: Stream listener does not enforce configured frame-size limit during authentication, permitting unauth'd mem-exhaust DoS

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 length...