{"id":"CVE-2021-31522","aliases":["GHSA-q656-g2x3-8cgh"],"url":"https://o3.security/vulnerability/CVE-2021-31522","summary":"Kylin can receive user input and load any class through Class.forName(...).","details":"Kylin can receive user input and load any class through Class.forName(...). This issue affects Apache Kylin 2 version 2.6.6 and prior versions; Apache Kylin 3 version 3.1.2 and prior versions; Apache Kylin 4 version 4.0.0 and prior versions.","published":"2022-01-06T13:15:08.027Z","modified":"2026-07-09T05:44:24.468221Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.apache.kylin:kylin","fixedVersion":"3.1.3"},{"ecosystem":"Maven","name":"org.apache.kylin:kylin","fixedVersion":"4.0.1"}],"fix":null,"references":[{"type":"FIX","url":"http://www.openwall.com/lists/oss-security/2022/01/06/4"},{"type":"FIX","url":"https://lists.apache.org/thread/hh5crx3yr701zd8wtpqo1mww2rlkvznw"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T05:44:24.468221Z"}}