CVE-2025-27821

Published: Jan 26, 2026

Modified: Jan 26, 2026

PUBLISHED

Description

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.

Vendor	Product	Versions
Apache Software Foundation	HDFS native client	affected `3.2.0 - < 3.4.2`

Weaknesses (CWE)

CWE-787

References

https://lists.apache.org/thread/kwjhyyx0wl2z9b0mw0styjk0hhdbyplh

vendor-advisory

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CVE-2025-27821

Description

Affected Products

Weaknesses (CWE)

References