CVE-2026-42241 (GCVE-0-2026-42241)

Vulnerability from cvelistv5 – Published: 2026-05-07 18:52 – Updated: 2026-05-08 21:30
VLAI
Title
ParquetSharp: Possible Stack Overflow When Reading a ParquetFile with Large Decimal Type Width
Summary
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 could lead to a stack overflow. In a service environment, this would potentially take down a service. This affects applications using ParquetSharp to read untrusted Parquet files in a network service. This issue has been patched in version 23.0.0.1.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-08 14:38 UTC
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7820 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
G-Research ParquetSharp Affected: >= 18.1.0, < 23.0.0.1
guessed Create a notification for this product.
Show details on NVD website
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