CVE-2012-1574: Apache Hadoop

Medium severity, CVSS 6.5. EPSS: 4.8% chance of exploitation in the next 30 days.

The Kerberos/MapReduce security functionality in Apache Hadoop 0.20.203.0 through 0.20.205.0, 0.23.x before 0.23.2, and 1.0.x before 1.0.2, as used in Cloudera CDH CDH3u0 through CDH3u2, Cloudera hadoop-0.20-sbin before 0.20.2+923.197, and other products, allows remote authenticated users to impersonate arbitrary cluster user accounts via unspecified vectors.

Affected products

• Apache Hadoop: version 0.20.203.0 only; version 0.20.204.0 only; version 0.20.205.0 only; version 0.23.0 only; version 0.23.1 only; version 1.0.0 only; …
• Cloudera Cloudera Cdh: version cdh3 only
• Cloudera Hadoop: version 0.20-sbin only; version 0.20.1+169 only; version 0.20.2+923 only

Published 2012-04-12. Last modified 2026-06-16.