CVE-2026-40858: Apache Camel: Camel-Infinispan: Unsafe Deserialization in Remote Aggregation Repository

[Andrea Cosentino <acosentino () apache org>]

Severity: important 

Affected versions:

- Apache Camel (org.apache.camel:camel-infinispan) 4.0.0 before 4.14.7
- Apache Camel (org.apache.camel:camel-infinispan) 4.15.0 before 4.18.2
- Apache Camel (org.apache.camel:camel-infinispan) 4.19.0 before 4.20.0

Description:

The camel-infinispan component's ProtoStream-based remote aggregation repository deserializes data read from a remote 
Infinispan cache using java.io.ObjectInputStream without applying any ObjectInputFilter. An attacker who can write to 
the Infinispan cache used by a Camel application can inject a crafted serialized Java object that, when read during 
normal aggregation repository operations such as get or recover, results in arbitrary code execution in the context of 
the application.

This issue affects Apache Camel: from 4.0.0 before 4.14.7, 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 4.14.7. If users are on the 4.18.x releases stream, then they are 
suggested to upgrade to 4.18.2.

The JIRA ticket:  https://issues.apache.org/jira/browse/CAMEL-23322  refers to the various commits that resolved the 
issue, and have more details. This issue follows the same class of vulnerability previously addressed in 
CVE-2024-22369, CVE-2024-23114 and CVE-2026-25747.

This issue is being tracked as CAMEL-23322 

Credit:

Feng Ning from Innora Pte. Ltd. (finder)

References:

https://camel.apache.org/security/CVE-2026-40858.html
https://camel.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-40858
https://issues.apache.org/jira/browse/CAMEL-23322