Deserialization in Apache Helix
CVE-2023-38647
An attacker can use SnakeYAML to deserialize java.net.URLClassLoader and make it load a JAR from a specified URL, and then deserialize javax.script.ScriptEngineManager to load code using that ClassLoader. This unbounded deserialization can likely lead to remote code execution. The code can be run in Helix REST start and Workflow creation. Affect all the versions lower and include 1.2.0. Affected products: helix-core, helix-rest Mitigation: Short term, stop using any YAML based configuration and workflow creation. Long term, all Helix version bumping up to 1.3.0
Vulnerability class: Insecure Deserialization
EPSS: 0.020 (78.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Apache Helix
- Apache Software Foundation Helix — versions 0
Weakness classification (CWE)
References
- security@apache.org (vendor-advisory, Mailing List)
Frequently asked questions
- What is CVE-2023-38647?
- CVE-2023-38647 is a critical-severity vulnerability in Apache Helix, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2023-07-26.
- How severe is CVE-2023-38647?
- Critical severity. CVSS v3 base score is 9.8 out of 10.