CVE-2026-69220
HighCVSS 8.7Exploitation Probability (EPSS)
Low risk33th percentile - higher than 33% of all known CVEs
Summary
RabbitMQ Java client library before 5.33.1 allows recursive calls to ValueReader.readFieldValue for AMQP types F and A without a nesting-depth limit. A malicious AMQP server or network intermediary can send about 580 nested table levels in the pre-authentication connection.start frame, causing StackOverflowError and terminating the client input processing thread, leading to denial of service.
Risk Assessment
An attacker can crash the Java client, causing unavailability of applications using RabbitMQ.
Recommendation
Upgrade the RabbitMQ Java client library to version 5.33.1 or later.
Original NVD description (English source)
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 for AMQP table type F and AMQP array type A values without a nesting-depth limit. A malicious AMQP server or network intermediary can send approximately 580 nested table levels in the pre-authentication connection.start frame, fitting within the default 131072-byte frame maximum, to trigger StackOverflowError. The error terminates the client input processing thread and causes denial of service. This issue is fixed in version 5.33.1.