CVE-2021-41561: Apache Parquet Java

High severity, CVSS 7.5. EPSS: 3.1% chance of exploitation in the next 30 days.

Improper Input Validation vulnerability in Parquet-MR of Apache Parquet allows an attacker to DoS by malicious Parquet files. This issue affects Apache Parquet-MR version 1.9.0 and later versions.

Affected products

• Apache Parquet Java: before 1.11.2 (fixed in 1.11.2); from 1.12.0, before 1.12.2 (fixed in 1.12.2)

Published 2021-12-20. Last modified 2026-06-17.