RabbitMQ up to 5.33.0 ValueReader ValueReader.java ValueReader.readFieldValue stack-based overflow

Summaryinfo

A vulnerability, which was classified as critical, was found in RabbitMQ up to 5.33.0. This vulnerability affects the function ValueReader.readFieldValue of the file src/main/java/com/rabbitmq/client/impl/ValueReader.java of the component ValueReader. Executing a manipulation can lead to stack-based overflow. The identification of this vulnerability is CVE-2026-69220. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical was found in RabbitMQ up to 5.33.0. This vulnerability affects the function ValueReader.readFieldValue of the file src/main/java/com/rabbitmq/client/impl/ValueReader.java of the component ValueReader. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability was named CVE-2026-69220 since 08/03/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

Upgrading to version 5.33.1 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• RabbitMQ

Version

• 5.0
• 5.1
• 5.2
• 5.3
• 5.4
• 5.5
• 5.6
• 5.7
• 5.8
• 5.9
• 5.10
• 5.11
• 5.12
• 5.13
• 5.14
• 5.15
• 5.16
• 5.17
• 5.18
• 5.19
• 5.20
• 5.21
• 5.22
• 5.23
• 5.24
• 5.25
• 5.26
• 5.27
• 5.28
• 5.29
• 5.30
• 5.31
• 5.32
• 5.33.0

CPE 2.3info

• 🔒
• 🔒
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CPE 2.2info

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• 🔒

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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