Signal is active with 2 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
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.tools.jsonrpc.ProcedureDescription receives a javaReturnType value in an untrusted system.describe response and passes it through JSONUtil.tryFill, setJavaReturnType, and computeReturnTypeAsJavaClass to Class.forName(javaReturnType) with initialization enabled. An attacker able to answer the JsonRpcClient request through a shared broker or network interception can select a class already present in the victim JVM and trigger its static initializer, while JsonRpcClient.java later passes getReturnType output to mapper.parse and may also create type confusion. Successful exploitation can affect confidentiality, integrity, and availability in the client process. This issue is fixed in version 5.33.0.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
NONE
CVE-2026-63337 The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.0, https://com.rabbitmq.tools.jsonrpc.Pr… https://www.cve.org/CVERecord?id=CVE-2026-63337
Post summary
The text announces CVE‑2026‑63337 affecting the RabbitMQ Java client, notes the fix starting in version 5.33.0, but provides no PoC, exploit details, or active exploitation evidence.
🚨*CVE* CVE-2026-63337 The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.0, https://com.rabbitmq.tools.jsonrpc.Pr… https://www.cve.org/CVERecord?id=CVE-2026-63337 ----- Traducción: CVE-2026-63337 La biblio… https://infoflow.cloud`
Post summary
The post references CVE‑2026‑63337 in the RabbitMQ Java client library and mentions it is present before version 5.33.0, but it does not provide vulnerability type, exploitation details, or patch information.