Severity: moderate 

Affected versions:

- Apache Camel (org.apache.camel:camel-mina) 3.0.0 before 4.14.6
- Apache Camel (org.apache.camel:camel-mina) 4.15.0 before 4.18.2
- Apache Camel (org.apache.camel:camel-mina) 4.19.0 before 4.20.0

Description:

The camel-mina component's MinaConverter.toObjectInput(IoBuffer) type converter 
wraps an IoBuffer in a java.io.ObjectInputStream without applying any 
ObjectInputFilter or class-loading restrictions. When a Camel route uses 
camel-mina as a TCP or UDP consumer and requests conversion to ObjectInput (for 
example via getBody(ObjectInput.class) or @Body ObjectInput), an attacker 
sending a crafted serialized Java object over the network to the MINA consumer 
port can trigger arbitrary code execution in the context of the application 
during readObject().

This issue affects Apache Camel: from 3.0.0 before 4.14.6, from 4.15.0 before 
4.18.2, from 4.19.0 before 4.20.0.

Users are recommended to upgrade to version 4.20.0, which fixes the issue. If 
users are on the 4.14.x LTS releases stream, then they are suggested to upgrade 
to 4.14.6. If users are on the 4.18.x releases stream, then they are suggested 
to upgrade to 4.18.2.

This issue is being tracked as CAMEL-23319 

Credit:

Venkatraman Kumar from Securin (finder)

References:

https://camel.apache.org/security/CVE-2026-40473.html
https://camel.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-40473
https://issues.apache.org/jira/browse/CAMEL-23319

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