How Vulnerable Is Your Data Pipeline to Apache Parquet Exploits?

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A critical security vulnerability within Apache Parquet’s Java Library, known as CVE-2025-30065, has raised alarming concerns within the tech community. With a maximum CVSS score of 10.0, the severity of this flaw cannot be underestimated. This vulnerability allows remote attackers to execute arbitrary code by tricking vulnerable systems into reading specially crafted Parquet files. Apache Parquet, launched in 2013, is a widely-used open-source columnar data file format that efficiently facilitates data processing and retrieval, making its integrity vital in many data pipelines.Keyi Li of Amazon deserves credit for discovering and reporting CVE-2025-30065, leading to its rectification in version 1.15.1 of Apache Parquet. All versions up to and including 1.15.0 are affected, and the swift response to the vulnerability underscores the urgency and high risk associated with it. The primary concern lies in how exploitation of this flaw can compromise data pipelines and analytics systems processing Parquet files, especially when sourced from untrusted origins.Such exploitation can lead to unauthorized execution of arbitrary code, ultimately resulting in severe system breaches.

The historical context of vulnerabilities in Apache products, including Apache Parquet, sheds light on the urgency of addressing such shortcomings.A recent example is the CVE-2025-24813 in Apache Tomcat, which was actively exploited within 30 hours following its disclosure. This rapid exploitation emphasizes how quick threat actors are to capitalize on vulnerabilities in Apache software.It also draws attention to the need for constant vigilance and prompt patching to safeguard against potential attacks.

A recent attack campaign on Apache Tomcat servers further illustrates this threat landscape. Detected by Aqua Security, this campaign targeted servers with weak, easily guessable credentials.The attackers deployed encrypted payloads designed to steal SSH credentials and hijack system resources for cryptocurrency mining. The advanced nature of these payloads is noteworthy—they establish persistence, function as Java-based web shells for executing arbitrary Java code, and optimize CPU consumption for better cryptomining results.The attack affected both Windows and Linux systems and suggested the involvement of a Chinese-speaking threat actor, as indicated by Chinese language comments in the source code.

Protective Measures and Future Considerations

To safeguard against the CVE-2025-30065 vulnerability, it is essential to update to the latest version of Apache Parquet (version 1.15.1) immediately. Regularly review and apply security patches to ensure that all software components, including those provided by third parties, remain secure. Additionally, implement robust security measures to prevent unauthorized data file uploads and ensure that only trusted sources are allowed to contribute to the data pipeline.Regular security audits and employing network monitoring tools can help detect and mitigate potential threats before they can cause significant damage. Considering the historical context of rapid exploitation, it’s crucial to maintain a proactive stance on security to protect sensitive data and maintain the integrity of data pipelines.

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