CVE-2018-1334: Apache Spark

Medium severity, CVSS 4.7. EPSS: 0.5% chance of exploitation in the next 30 days.

In Apache Spark 1.0.0 to 2.1.2, 2.2.0 to 2.2.1, and 2.3.0, when using PySpark or SparkR, it's possible for a different local user to connect to the Spark application and impersonate the user running the Spark application.

Affected products

• Apache Spark: up to and including 2.1.2; from 2.2.0, up to and including 2.2.1; version 2.3.0 only

Published 2018-07-12. Last modified 2026-06-17.