{
"id": "GHSA-rrjr-v56m-ww88",
"aliases": [
"CVE-2026-42241"
],
"details": "`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.\n\nThis affects applications using ParquetSharp to read untrusted Parquet files in a network service.",
"summary": "ParquetSharp: Possible Stack Overflow When Reading a ParquetFile with Large Decimal Type Width",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "18.1.0"
},
{
"fixed": "23.0.0.1"
}
]
}
],
"package": {
"name": "ParquetSharp",
"ecosystem": "NuGet"
}
}
],
"modified": "2026-05-11T13:29:39Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
}
],
"published": "2026-04-24T16:39:55Z",
"references": [
{
"url": "https://github.com/G-Research/ParquetSharp/security/advisories/GHSA-rrjr-v56m-ww88",
"type": "WEB"
},
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42241",
"type": "ADVISORY"
},
{
"url": "https://github.com/G-Research/ParquetSharp",
"type": "PACKAGE"
},
{
"url": "https://github.com/G-Research/ParquetSharp/releases/tag/23.0.0.1",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-789"
],
"severity": "MODERATE",
"github_reviewed": true,
"nvd_published_at": "2026-05-07T20:16:44Z",
"github_reviewed_at": "2026-04-24T16:39:55Z"
}
}