CVE-2025-27821

published 2026-01-26

CVE-2025-27821: 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…

high 7.3 CVSS 3.1

AV N AC L PR N UI N S U C L I L A L

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

3 ranges

Vendor	Product	Version range	Fixed in
apache	hadoop	—	—
apache	hadoop	>= 3.2.0 < 3.4.2	3.4.2
apache_software_foundation	hdfs_native_client	>= 3.2.0 < 3.4.2	3.4.2

CWE-787