CVE-2017-12633 Apache Camel camel-hessian component vulnerable to Java object deserialization

What is CVE-2017-12633?

CVE-2017-12633 is a critical unsafe deserialization vulnerability in Apache Camel, published on 15 Nov 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The camel-hessian component in Apache Camel 2.x before 2.19.4 and 2.20.x before 2.20.1 is vulnerable to Java object de-serialisation vulnerability. De-serializing untrusted data can lead to security flaws.

Weakness: CWE-502

Which versions are affected by CVE-2017-12633?

4 open source packages ship an affected version, including org.apache.camel:camel-hessian. It affects 1 product.

Products include Apache Camel.

How do I fix CVE-2017-12633?

Upgrade org.apache.camel:camel-hessian to a fixed version for your release line: 2.19.4 or 2.20.1.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2017-12633 being exploited?

There is no known exploitation of CVE-2017-12633 in the wild and no public exploit code.

Other vulnerabilities in Apache Camel

• CVE-2026-33453 Apache camel-coap allows header injection that can lead to remote code execution Critical 10.0
• CVE-2026-40453 Apache Camel has an incomplete fix for CVE-2025-27636 Critical 9.9
• CVE-2026-80351 Apache Camel K: Camel K Tenant repositories reach Maven execution inside operator pod Critical 9.8
• CVE-2026-80352 Apache Camel K: Camel K Master trait serviceAccountName YAML injection lets CR author apply arbitrary objects Critical 9.8
• CVE-2026-71300 Apache Camel: Camel-Atmosphere-Websocket: WebSocket dispatch header injection Critical 9.8

All Apache Camel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-5whj-523x-6j68.