CVE-2021-25642
Apache Hadoop YARN remote code execution in ZKConfigurationStore of capacity scheduler
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.
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
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.
- Record
CVE-2021-25642- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
CVE List No score
Apache Hadoop YARN remote code execution in ZKConfigurationStore of capacity scheduler
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.
- Record
CVE-2021-25642- Weakness
- CWE-502
- Updated
- 2026-11-02
EUVDEUVD-2022-6622 No score
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.
- Record
EUVD-2022-6622- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rr2m-gffv-mgrj
Deserialization of Untrusted Data in Apache Hadoop YARN
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.
- Record
GHSA-rr2m-gffv-mgrj- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2021-25642- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-rr2m-gffv-mgrj
Deserialization of Untrusted Data in Apache Hadoop YARN
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.
- Record
GHSA-rr2m-gffv-mgrj- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.apache.hadoop:hadoop-yarn-serverMaven |
before 2.10.2 | 2.10.2 |
org.apache.hadoop:hadoop-yarn-serverMaven |
3.0.0 up to 3.2.4 | 3.2.4 |
org.apache.hadoop:hadoop-yarn-serverMaven |
3.3.0 up to 3.3.4 | 3.3.4 |
org.apache.hadoop:hadoop-yarn-serverMaven |
before 2.10.2, plus listed versions 0.23.10.23.100.23.110.23.30.23.4 Show 45 moreShow less0.23.50.23.60.23.70.23.80.23.92.0.0-alpha2.0.1-alpha2.0.2-alpha2.0.3-alpha2.0.4-alpha2.0.5-alpha2.0.6-alpha2.1.0-beta2.1.1-beta2.10.02.10.12.2.02.3.02.4.02.4.12.5.02.5.12.5.22.6.02.6.12.6.22.6.32.6.42.6.52.7.02.7.12.7.22.7.32.7.42.7.52.7.62.7.72.8.02.8.12.8.22.8.32.8.42.8.52.9.02.9.1 |
2.10.2 |
org.apache.hadoop:hadoop-yarn-serverMaven |
3.0.0 up to 3.2.4, plus listed versions 3.0.13.0.23.0.33.1.03.1.1 Show 7 moreShow less3.1.23.1.33.1.43.2.03.2.13.2.23.2.3 |
3.2.4 |
org.apache.hadoop:hadoop-yarn-serverMaven |
3.3.0 up to 3.3.4, plus listed versions 3.3.13.3.23.3.3 |
3.3.4 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | safe3s/CVE-2021-25642 | 2022-08-26 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-25642 is a high vulnerability (CVSS 8.8) in Apache Hadoop, published August 25, 2022. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 2.30%, the 83rd percentile. Fixed in org.apache.hadoop:hadoop-yarn-server 2.10.2.
References
Left out here: 1 version. The JSON record has them.