Deserialization of Untrusted Data Affecting org.springframework:spring-jms package, versions [5.3.0,6.0.0)[6.1.0-M1,6.2.19)[7.0.0-M1,7.0.8)
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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- published9 Jun 2026
- disclosed8 Jun 2026
- creditwo1enca1ca1
Introduced: 8 Jun 2026
CVE-2026-41855 (opens in a new tab)How to fix?
Upgrade org.springframework:spring-jms to version 6.0.0, 6.2.19, 7.0.8 or higher.
Overview
org.springframework:spring-jms is a maven plugin for Spring JMS.
Affected versions of this package are vulnerable to Deserialization of Untrusted Data via deserialization in MappingJackson2MessageConverter and JacksonJsonMessageConverter within an untrusted JMS environment. An attacker can instantiate arbitrary classes by supplying crafted JMS messages that influence the target type during JSON deserialization. This may lead to unauthorized actions or code execution through exploitation of deserialization gadget chains available on the application's classpath.
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.