CVE-2016-5393
Improper Access Control in Apache Hadoop
In Apache Hadoop 2.6.x before 2.6.5 and 2.7.x before 2.7.3, a remote user who can authenticate with the HDFS NameNode can possibly run arbitrary commands with the same privileges as the HDFS service.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
In Apache Hadoop 2.6.x before 2.6.5 and 2.7.x before 2.7.3, a remote user who can authenticate with the HDFS NameNode can possibly run arbitrary commands with the same privileges as the HDFS service.
- Record
CVE-2016-5393- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-284
- Updated
- 2026-11-02
CVE List No score
In Apache Hadoop 2.6.x before 2.6.5 and 2.7.x before 2.7.3, a remote user who can authenticate with the HDFS NameNode can possibly run arbitrary commands with the same privileges as the HDFS service.
- Record
CVE-2016-5393- Updated
- 2026-11-02
EUVDEUVD-2022-3045 No score
In Apache Hadoop 2.6.x before 2.6.5 and 2.7.x before 2.7.3, a remote user who can authenticate with the HDFS NameNode can possibly run arbitrary commands with the same privileges as the HDFS service.
- Record
EUVD-2022-3045- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-7q56-mp4c-gggg
Improper Access Control in Apache Hadoop
In Apache Hadoop 2.6.x before 2.6.5 and 2.7.x before 2.7.3, a remote user who can authenticate with the HDFS NameNode can possibly run arbitrary commands with the same privileges as the HDFS service.
- Record
GHSA-7q56-mp4c-gggg- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-284
- Updated
- 2026-11-02
OSV
In Apache Hadoop 2.6.x before 2.6.5 and 2.7.x before 2.7.3, a remote user who can authenticate with the HDFS NameNode can possibly run arbitrary commands with the same privileges as the HDFS service.
- Record
CVE-2016-5393- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-7q56-mp4c-gggg
Improper Access Control in Apache Hadoop
In Apache Hadoop 2.6.x before 2.6.5 and 2.7.x before 2.7.3, a remote user who can authenticate with the HDFS NameNode can possibly run arbitrary commands with the same privileges as the HDFS service.
- Record
GHSA-7q56-mp4c-gggg- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-284
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.apache.hadoop:hadoop-commonMaven |
2.6.0 to 2.6.4 | 2.6.5 |
org.apache.hadoop:hadoop-commonMaven |
2.7.0 to 2.7.2 | 2.7.3 |
org.apache.hadoop:hadoop-commonMaven |
2.6.0 up to 2.6.5, plus listed versions 2.6.12.6.22.6.32.6.4 |
2.6.5 |
org.apache.hadoop:hadoop-commonMaven |
2.7.0 up to 2.7.3, plus listed versions 2.7.12.7.2 |
2.7.3 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2016-5393 is a high vulnerability (CVSS 8.8) in Apache Hadoop, published November 29, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.14%, the 87th percentile. Fixed in org.apache.hadoop:hadoop-common 2.6.5.