Deserialization of Untrusted Data Affecting org.apache.camel:camel-sjms package, versions [3.0.0,4.14.8)[4.15.0,4.18.3)[4.19.0,4.21.0)
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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- published7 Jul 2026
- disclosed6 Jul 2026
- creditgaorenyusi
Introduced: 6 Jul 2026
NewCVE-2026-43866 (opens in a new tab)How to fix?
Upgrade org.apache.camel:camel-sjms to version 4.14.8, 4.18.3, 4.21.0 or higher.
Overview
Affected versions of this package are vulnerable to Deserialization of Untrusted Data in the JmsBinding.extractBodyFromJms process when handling JMS ObjectMessages with the mapJmsMessage option enabled. An attacker can inject arbitrary Exchange state by publishing a crafted ObjectMessage containing a DefaultExchangeHolder object to a queue or topic consumed by an affected application, allowing manipulation of routing, headers, exchange properties, and error handling without requiring a deserialization gadget chain. This is only exploitable if the attacker can publish ObjectMessages to a JMS destination consumed by the application.
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.