RabbitMQ Java client: TrustEverythingTrustManager used by default in useSslProtocol() enables MITM

Vulnerability Summary com.rabbitmq.client.TrustEverythingTrustManager accepts ANY TLS certificate including null chains and is used as the default trust manager when calling ConnectionFactory.useSslProtocol without arguments. Combined with hostname verification being disabled by default, this...

RabbitMQ Java client malformed body frame triggers raw command assembler exception

Summary RabbitMQ Java Client's inbound AMQP command assembly accepts a content header declaring a small body and then processes a larger body frame by throwing a raw UnsupportedOperationException from CommandAssembler. A broker peer that the client has connected to can use this malformed frame...

GHSA-QX7J-JV8M-FPPR RabbitMQ Java client malformed body frame triggers raw command assembler exception

Summary RabbitMQ Java Client's inbound AMQP command assembly accepts a content header declaring a small body and then processes a larger body frame by throwing a raw UnsupportedOperationException from CommandAssembler. A broker peer that the client has connected to can use this malformed frame...

RabbitMQ Java client: Unvalidated Class.forName in JSON-RPC ProcedureDescription enables arbitrary class loading

The JSON-RPC tools in com.rabbitmq.tools.jsonrpc perform Class.forNamejavaReturnType with initialize=true on class names received from untrusted AMQP messages, without any validation or allowlist. Vulnerable code ProcedureDescription.java:101-127: When a JsonRpcClient connects, it calls...

GHSA-6G32-PXV4-2WFJ RabbitMQ Java client: Unvalidated Class.forName in JSON-RPC ProcedureDescription enables arbitrary class loading

The JSON-RPC tools in com.rabbitmq.tools.jsonrpc perform Class.forNamejavaReturnType with initialize=true on class names received from untrusted AMQP messages, without any validation or allowlist. Vulnerable code ProcedureDescription.java:101-127: When a JsonRpcClient connects, it calls...

GHSA-68MJ-5WR7-6FGG RabbitMQ Java client ValueReader: Oversized LongString/bytes length triggers OOM via unchecked allocation

Summary ValueReader.readBytes allocates a byte array sized by a wire-declared content length without validating it against actual frame data. A malicious AMQP peer triggers OOM by declaring a 2GB string/bytes field. Vulnerable Code src/main/java/com/rabbitmq/client/impl/ValueReader.java lines...

RabbitMQ Java client ValueReader: Oversized LongString/bytes length triggers OOM via unchecked allocation

Summary ValueReader.readBytes allocates a byte array sized by a wire-declared content length without validating it against actual frame data. A malicious AMQP peer triggers OOM by declaring a 2GB string/bytes field. Vulnerable Code src/main/java/com/rabbitmq/client/impl/ValueReader.java lines...

CVE-2026-61634 RabbitMQ Java client accepts broker frames larger than the negotiated AMQP frame_max

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.0, the AMQP connection tuning path records the negotiated AMQP framemax value, but src/main/java/com/rabbitmq/client/impl/SocketFrameHandler.java and...

EUVD-2026-61046

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.0, the AMQP connection tuning path records the negotiated AMQP framemax value, but src/main/java/com/rabbitmq/client/impl/SocketFrameHandler.java and...

CVE-2026-61634 RabbitMQ Java client accepts broker frames larger than the negotiated AMQP frame_max

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.0, the AMQP connection tuning path records the negotiated AMQP framemax value, but src/main/java/com/rabbitmq/client/impl/SocketFrameHandler.java and...

CVE-2026-61634 RabbitMQ Java client accepts broker frames larger than the negotiated AMQP frame_max

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.0, the AMQP connection tuning path records the negotiated AMQP framemax value, but src/main/java/com/rabbitmq/client/impl/SocketFrameHandler.java and...

CVE-2026-61634

In RabbitMQ Java client prior to 5.33.0, SocketFrameHandler.java and NettyFrameHandlerFactory validate frame payload lengths against maxInboundMessageBodySize instead of the negotiated frame_max, so a malicious broker can send oversized method frames that bypass MalformedFrameException checks, ca...

CVE-2026-61634

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.0, the AMQP connection tuning path records the negotiated AMQP framemax value, but src/main/java/com/rabbitmq/client/impl/SocketFrameHandler.java and...

RabbitMQ Java client ValueReader: Unbounded recursive table/array nesting causes StackOverflowError DoS

Summary ValueReader.readTable and readArray recursively call readFieldValue with no depth limit. A malicious AMQP peer can crash the client JVM by sending a deeply nested table structure. Vulnerable Code src/main/java/com/rabbitmq/client/impl/ValueReader.java lines 139-155 and 237-249: java priva...

GHSA-93J5-89VC-PPH4 RabbitMQ Java client ValueReader: Unbounded recursive table/array nesting causes StackOverflowError DoS

Summary ValueReader.readTable and readArray recursively call readFieldValue with no depth limit. A malicious AMQP peer can crash the client JVM by sending a deeply nested table structure. Vulnerable Code src/main/java/com/rabbitmq/client/impl/ValueReader.java lines 139-155 and 237-249: java priva...

CVE-2026-63336

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.0, com.rabbitmq.client.ConnectionFactory.useSslProtocol and ConnectionFactory.useSslProtocolString configure com.rabbitmq.client.TrustEverythingTrustManager and...

CVE-2026-63336 RabbitMQ Java client: TrustEverythingTrustManager used by default in useSslProtocol() enables MITM

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.0, com.rabbitmq.client.ConnectionFactory.useSslProtocol and ConnectionFactory.useSslProtocolString configure com.rabbitmq.client.TrustEverythingTrustManager and...

CVE-2026-63336 RabbitMQ Java client: TrustEverythingTrustManager used by default in useSslProtocol() enables MITM

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.0, com.rabbitmq.client.ConnectionFactory.useSslProtocol and ConnectionFactory.useSslProtocolString configure com.rabbitmq.client.TrustEverythingTrustManager and...

CVE-2026-63336

Prior to 5.33.0, the RabbitMQ Java client's useSslProtocol() methods installed a TrustEverythingTrustManager and disabled hostname verification, accepting any certificate. A network attacker could impersonate the broker, read protected AMQP traffic, and modify it. Fixed in 5.33.0, which uses the ...

EUVD-2026-61045

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.0, com.rabbitmq.client.ConnectionFactory.useSslProtocol and ConnectionFactory.useSslProtocolString configure com.rabbitmq.client.TrustEverythingTrustManager and...