CVE-2026-42241
MEDIUM EPSS 19.0%
Published May 7, 20261mo ago · Modified Jun 17, 20262w ago
5.3 CVSS 3.1
Published May 7, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago
Description
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability Low
Threat Intelligence
EPSS Exploit Probability
19.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-789
References 2
- github.com https://github.com/G-Research/ParquetSharp/releases/tag/23.0.0.1
- github.com https://github.com/G-Research/ParquetSharp/security/advisories/GHSA-rrjr-v56m-ww88
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.