CVSS 3.1
8.8 highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCVE-2021-25642
High (8.8) in apache hadoop. EPSS 2.3% chance of exploitation in the next 30 days. Fixed in org.apache.hadoop:hadoop-yarn-server 2.10.2, 3.2.4, 3.3.4.
ZKConfigurationStore which is optionally used by CapacityScheduler of Apache Hadoop YARN deserializes data obtained from ZooKeeper without validation. An attacker having access to ZooKeeper can run arbitrary commands as YARN user by exploiting this. Users should upgrade to Apache Hadoop 2.10.2, 3.2.4, 3.3.4 or later (containing YARN-11126) if ZKConfigurationStore is used.
Severity
- EPSS
- 2.3% chance of exploitation in the next 30 days; higher than 83% of CVEs (scores of 2026-10-31)
- CWE
- CWE-502
- Published
- Modified
- Record from
- the NVD, synced
Affected
- apache:hadoop
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-rr2m-gffv-mgrj | Maven | org.apache.hadoop:hadoop-yarn-server | <2.10.2 | 2.10.2 |
| GHSA-rr2m-gffv-mgrj | Maven | org.apache.hadoop:hadoop-yarn-server | >=3.0.0 <3.2.4 | 3.2.4 |
| GHSA-rr2m-gffv-mgrj | Maven | org.apache.hadoop:hadoop-yarn-server | >=3.3.0 <3.3.4 | 3.3.4 |