CVE-2026-40858: Apache Camel: Camel-Infinispan: Unsafe Deserialization in Remote Aggregation Repository
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Apache Camel (camel-infinispan)to a version that resolves this vulnerability.Fixed in 4.14.7 - Upgrade
Upgrade
Apache Camel (camel-infinispan)to a version that resolves this vulnerability.Fixed in 4.18.2 - Upgrade
Upgrade
Apache Camel (camel-infinispan)to a version that resolves this vulnerability.Fixed in 4.20.0
Event History
Frequently Asked Questions
What is the severity of CVE-2026-40858?
CVE-2026-40858 has been classified with a critical severity due to its potential for remote code execution.
How do I fix CVE-2026-40858?
To fix CVE-2026-40858, upgrade the Apache Camel camel-infinispan component to version 4.20.0 or later.
Which versions are affected by CVE-2026-40858?
CVE-2026-40858 affects Apache Camel camel-infinispan versions from 4.0.0 to 4.14.7, and 4.15.0 to 4.18.2, as well as the 4.19.0 version.
What is the impact of CVE-2026-40858?
The impact of CVE-2026-40858 includes the risk of unauthorized execution of arbitrary code through unsafe deserialization.
Is there a workaround for CVE-2026-40858?
As a temporary workaround for CVE-2026-40858, it's advised to disable the use of the vulnerable camel-infinispan component until an upgrade can be performed.