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...

GHSA-5XWG-CFVJ-GFF5 RabbitMQ Java client accepts broker frames larger than the negotiated AMQP frame_max

Summary The max body size was enforced to patch CVE-2023-46120, but even though that limit still works, the frame size itself still exceeds the given max size. Root cause The Java client records the AMQP 0-9-1 framemax negotiated during connection tuning, but the socket inbound frame reader...

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

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...

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 ...

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-2026-69220

In RabbitMQ Java client

CVE-2026-69220

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.1, src/main/java/com/rabbitmq/client/impl/ValueReader.java permits ValueReader.readTable and ValueReader.readArray to call ValueReader.readFieldValue recursively f...

CVE-2026-69219 RabbitMQ Java client ValueReader: Oversized LongString/bytes length triggers OOM via unchecked allocation

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.1, src/main/java/com/rabbitmq/client/impl/ValueReader.java uses ValueReader.readBytes to accept a wire-declared contentLength below Integer.MAXVALUE and allocate a...

CVE-2026-69219

The vulnerability is in ValueReader.readBytes in ValueReader.java of the RabbitMQ Java client prior to 5.33.1: it allocates a byte array based on a wire-declared length before verifying available frame data, allowing a malicious AMQP peer to trigger a ~2 GB allocation and OutOfMemoryError during ...

CVE-2026-69219 RabbitMQ Java client ValueReader: Oversized LongString/bytes length triggers OOM via unchecked allocation

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.1, src/main/java/com/rabbitmq/client/impl/ValueReader.java uses ValueReader.readBytes to accept a wire-declared contentLength below Integer.MAXVALUE and allocate a...

CVE-2026-63336: Improper Certificate Validation

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-2026-69219: Memory Allocation with Excessive Size Value

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.1, src/main/java/com/rabbitmq/client/impl/ValueReader.java uses ValueReader.readBytes to accept a wire-declared contentLength below Integer.MAXVALUE and allocate a...

PT-2026-80227

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...

PT-2026-80236

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...

PT-2026-80233

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: Improper Input Validation

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...

PT-2026-77213

Name of the Vulnerable Software and Affected Versions RabbitMQ Java client library versions prior to 5.33.1 Description An issue exists where the ValueReader.readBytes function in src/main/java/com/rabbitmq/client/impl/ValueReader.java allocates a byte array based on a wire-declared contentLength...

ANT-2026-GTGXBRXN · rabbitmq-c · Integer Underflow

integer-underflow medium CVE-2026-44235 Severity Claude medium · Security research firm medium · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-GTGXBRXN: sizet underflow in AMQ...