What’s Vulnerable › Vulnerabilities

CVE-2016-5001

• Severity: medium (CVSS 5.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-08-30 · updated 2026-06-17
• Weakness: CWE-200

Description

This is an information disclosure vulnerability in Apache Hadoop before 2.6.4 and 2.7.x before 2.7.2 in the short-circuit reads feature of HDFS. A local user on an HDFS DataNode may be able to craft a block token that grants unauthorized read access to random files by guessing certain fields in the token.

Affected products

• Apache Software Foundation Apache Hadoop: through 2.6.3; 2.7.0, 2.7.1

References

• http://seclists.org/oss-sec/2016/q4/698
• http://www.securityfocus.com/bid/94950
• https://lists.apache.org/thread.html/r66de86b9a608c1da70b2d27d765c11ec88edf6e5dd6f379ab33e072a%40%3Cuser.flink.apache.org%3E
• http://seclists.org/oss-sec/2016/q4/698
• http://www.securityfocus.com/bid/94950
• https://lists.apache.org/thread.html/r66de86b9a608c1da70b2d27d765c11ec88edf6e5dd6f379ab33e072a%40%3Cuser.flink.apache.org%3E

Get alerted when CVE-2016-5001 or the next vulnerability affects your stack