{"id":"GHSA-rrjr-v56m-ww88","summary":"ParquetSharp: Possible Stack Overflow When Reading a ParquetFile with Large Decimal Type Width","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.","aliases":["CVE-2026-42241"],"modified":"2026-05-11T13:52:22.711625Z","published":"2026-04-24T16:39:55Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2026-04-24T16:39:55Z","nvd_published_at":"2026-05-07T20:16:44Z","cwe_ids":["CWE-789"],"severity":"MODERATE"},"references":[{"type":"WEB","url":"https://github.com/G-Research/ParquetSharp/security/advisories/GHSA-rrjr-v56m-ww88"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42241"},{"type":"PACKAGE","url":"https://github.com/G-Research/ParquetSharp"},{"type":"WEB","url":"https://github.com/G-Research/ParquetSharp/releases/tag/23.0.0.1"}],"affected":[{"package":{"name":"ParquetSharp","ecosystem":"NuGet","purl":"pkg:nuget/ParquetSharp"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"18.1.0"},{"fixed":"23.0.0.1"}]}],"versions":["18.1.0","19.0.1","19.0.1-beta1","20.0.0","20.0.0-beta1","20.0.0-beta2","21.0.0","21.0.0-beta1","23.0.0","23.0.0-beta1"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-rrjr-v56m-ww88/GHSA-rrjr-v56m-ww88.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}