{"id":"CVE-2021-41561","aliases":["GHSA-gc67-crq6-hgh5"],"url":"https://o3.security/vulnerability/CVE-2021-41561","summary":"Improper Input Validation in Parquet-MR","details":"Improper Input Validation vulnerability in Parquet-MR of Apache Parquet allows an attacker to DoS by malicious Parquet files. This issue affects Apache Parquet-MR version 1.9.0 and later versions.","published":"2021-12-20T12:15:07.333Z","modified":"2026-07-09T02:36:08.583165Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.apache.parquet:parquet","fixedVersion":"1.12.2"},{"ecosystem":"Maven","name":"org.apache.parquet:parquet","fixedVersion":"1.11.2"}],"fix":null,"references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2021/12/20/1"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/1bjlscbqtfzl160hrm9lnpjpppp5z3zr"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T02:36:08.583165Z"}}