Skip to content
Fencer Vulns
high 8.8

CVE-2021-33036 json

Apache Hadoop Privilege escalation vulnerability

published 2022-06-15 4 y ago modified 2026-06-17 4 mo ago also GHSA-58jx-f5rf-qgqf , EUVD-2022-5933

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.0%
EPSS 4.0% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

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.

Patch / fix

  • maven org.apache.hadoop:hadoop-yarn-server-common 2.10.2, 3.2.3, 3.3.2
  • apache hadoop 2.10.2, 3.2.3, 3.3.2

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-33036 updated cvss 8.8

hadoop: privilege escalation via yarn user

  • Red Hat Integration Data Virtualisation Operator hadoop hadoop Red Hat JBoss Data Grid 7 hadoop hadoop
    affected: no fix planned “Out of support scope”
  • Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/elasticsearch6-rhel8 Red Hat Fuse 7 hadoop hadoop Red Hat Integration Camel K 1 hadoop hadoop Red Hat Integration Camel Quarkus 1 hadoop hadoop
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.03% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 9.0 AV:N/AC:L/Au:S/C:C/I:C/A:C
GitHub 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven org.apache.hadoop:hadoop-yarn-server-common
>=2.2.0, <2.10.2
>=3.0.0, <3.2.3
>=3.3.0, <3.3.2
2.10.2
3.2.3
3.3.2

Affected products

  • Apache Software Foundation Apache Hadoop

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls
  • CWE-24 Path Traversal: '../filedir'
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory
  • CWE-502 Deserialization of Untrusted Data

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.