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.
{
"github_reviewed_at": "2026-04-24T16:39:55Z",
"cwe_ids": [
"CWE-789"
],
"github_reviewed": true,
"severity": "MODERATE",
"nvd_published_at": "2026-05-07T20:16:44Z"
}