Deserialization of Untrusted Data Affecting org.apache.camel:camel-jgroups package, versions [4.0.0,4.18.5)[4.19.0,4.22.1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published22 Oct 2026
- disclosed19 Oct 2026
- credith1ei1
Introduced: 19 Oct 2026
NewCVE-2026-88900 (opens in a new tab)How to fix?
Upgrade org.apache.camel:camel-jgroups to version 4.18.5, 4.22.1 or higher.
Overview
Affected versions of this package are vulnerable to Deserialization of Untrusted Data via JGroupsEndpoint.createExchange(Message) in the Camel-JGroups consumer. An attacker with network access to the JGroups cluster can send a crafted serialized ObjectMessage, which JGroups deserializes before Camel processes it; without a JVM-wide or JGroups deserialization filter, a usable gadget chain on the application classpath can let the attacker execute code in the Camel process. When the consumer uses the default UDP multicast channel, it has no authentication or encryption, so a host that can reach the cluster can send messages without credentials.
Notes
- At the network-entry step, the default UDP multicast transport limits attackers to hosts on an adjacent network that can reach the cluster’s multicast group or bind port.
Details
Serialization is a process of converting an object into a sequence of bytes which can be persisted to a disk or database or can be sent through streams. The reverse process of creating object from sequence of bytes is called deserialization. Serialization is commonly used for communication (sharing objects between multiple hosts) and persistence (store the object state in a file or a database). It is an integral part of popular protocols like Remote Method Invocation (RMI), Java Management Extension (JMX), Java Messaging System (JMS), Action Message Format (AMF), Java Server Faces (JSF) ViewState, etc.
Deserialization of untrusted data (CWE-502) is when the application deserializes untrusted data without sufficiently verifying that the resulting data will be valid, thus allowing the attacker to control the state or the flow of the execution.