How severe is CVE-2023-22946?

This vulnerability has a severity rating of CRITICAL with a CVSS score of 9.9 out of 10.

What type of vulnerability is CVE-2023-22946?

This is classified as CWE-269, which is a common weakness in software security.

CVE-2023-22946 - CRITICAL Severity | CVSS 9.9

Vulnerability Description

In Apache Spark versions prior to 3.4.0, applications using spark-submit can specify a 'proxy-user' to run as, limiting privileges. The application can execute code with the privileges of the submitting user, however, by providing malicious configuration-related classes on the classpath. This affects architectures relying on proxy-user, for example those using Apache Livy to manage submitted applications. Update to Apache Spark 3.4.0 or later, and ensure that spark.submit.proxyUser.allowCustomClasspathInClusterMode is set to its default of "false", and is not overridden by submitted applications.

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