CVE-2025-27821
High · 7.3Apache Hadoop HDFS Native Client has Out-of-bounds Write Vulnerability
CVSS
7.3
EPSS
0.9%
Published
Jan 26, 2026
CISA due date
—
The record
Out-of-bounds Write vulnerability in Apache Hadoop HDFS native client. This issue affects Apache Hadoop: from 3.2.0 before 3.4.2. Users are recommended to upgrade to version 3.4.2, which fixes the issue.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Maven | org.apache.hadoop:hadoop-hdfs-native-client | 3.2.0 | 3.4.2 |
| maven | org.apache.hadoop/hadoop-hdfs-native-client | 3.2.0 | 3.4.2 |
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