CVE-2026-42241

ParquetSharp is a .NET library for reading and writing Apache Parquet files. From version 18.1.0 to before version 23.0.0.1, DecimalConverter.ReadDecimal makes a stackalloc using what might be an attacker-supplied value. If an attacker declares a decimal column with some unreasonable width, this...

CVE-2026-42241

ParquetSharp is a .NET library for reading and writing Apache Parquet files. From version 18.1.0 to before version 23.0.0.1, DecimalConverter.ReadDecimal makes a stackalloc using what might be an attacker-supplied value. If an attacker declares a decimal column with some unreasonable width, this...

CVE-2026-42241

ParquetSharp (a .NET library for Parquet) has a vulnerability in DecimalConverter.ReadDecimal from 18.1.0 up to before 23.0.0.1 where a stackalloc is performed using an attacker‑supplied width, allowing stack overflow if a decimal column width is unreasonably large. In a service environment, this...

CVE-2026-42241

ParquetSharp is a .NET library for reading and writing Apache Parquet files. From version 18.1.0 to before version 23.0.0.1, DecimalConverter.ReadDecimal makes a stackalloc using what might be an attacker-supplied value. If an attacker declares a decimal column with some unreasonable width, this...

CVE-2026-42241 ParquetSharp: Possible Stack Overflow When Reading a ParquetFile with Large Decimal Type Width

ParquetSharp is a .NET library for reading and writing Apache Parquet files. From version 18.1.0 to before version 23.0.0.1, DecimalConverter.ReadDecimal makes a stackalloc using what might be an attacker-supplied value. If an attacker declares a decimal column with some unreasonable width, this...

CVE-2026-42241 ParquetSharp: Possible Stack Overflow When Reading a ParquetFile with Large Decimal Type Width

ParquetSharp is a .NET library for reading and writing Apache Parquet files. From version 18.1.0 to before version 23.0.0.1, DecimalConverter.ReadDecimal makes a stackalloc using what might be an attacker-supplied value. If an attacker declares a decimal column with some unreasonable width, this...

ParquetSharp 安全漏洞

ParquetSharp is a .NET library developed by G-Research for reading and writing Parquet files across platforms. Versions of ParquetSharp from 18.1.0 to 23.0.0.1 contained security vulnerabilities. These vulnerabilities stemmed from the use of DecimalConverter.ReadDecimal to perform stackalloc with...

CVE-2026-42241: Memory Allocation with Excessive Size Value

ParquetSharp is a .NET library for reading and writing Apache Parquet files. From version 18.1.0 to before version 23.0.0.1, DecimalConverter.ReadDecimal makes a stackalloc using what might be an attacker-supplied value. If an attacker declares a decimal column with some unreasonable width, this...

GHSA-RRJR-V56M-WW88 ParquetSharp: Possible Stack Overflow When Reading a ParquetFile with Large Decimal Type Width

DecimalConverter.ReadDecimal makes a stackalloc using what might be an attacker-supplied value. If an attacker declares a decimal column with some unreasonable width, this could lead to a stack overflow. In a service environment, this would potentially take down a service. This affects applicatio...

Memory Allocation with Excessive Size Value

Overview ParquetSharp is a .NET library for reading and writing Parquet files. Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value in the DecimalConverter.ReadDecimal function. An attacker can cause a large stackalloc by supplying a Parquet file with a...

ParquetSharp: Possible Stack Overflow When Reading a ParquetFile with Large Decimal Type Width

DecimalConverter.ReadDecimal makes a stackalloc using what might be an attacker-supplied value. If an attacker declares a decimal column with some unreasonable width, this could lead to a stack overflow. In a service environment, this would potentially take down a service. This affects applicatio...

PT-2026-37182

Name of the Vulnerable Software and Affected Versions ParquetSharp versions 18.1.0 through 23.0.0 Description ParquetSharp is a .NET library used for reading and writing Apache Parquet files. The ReadDecimal function in DecimalConverter performs a stackalloc operation using a value that can be...