CVE-2017-3166: Apache Hadoop

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

In Apache Hadoop versions 2.6.1 to 2.6.5, 2.7.0 to 2.7.3, and 3.0.0-alpha1, if a file in an encryption zone with access permissions that make it world readable is localized via YARN's localization mechanism, that file will be stored in a world-readable location and can be shared freely with any application that requests to localize that file.

Affected products

• Apache Hadoop: version 2.6.1 only; version 2.6.2 only; version 2.6.3 only; version 2.6.4 only; version 2.6.5 only; version 2.7.0 only; …

Published 2017-11-13. Last modified 2026-06-17.