{"id":"CVE-2021-33563","details":"Koel before 5.1.4 lacks login throttling, lacks a password strength policy, and shows whether a failed login attempt had a valid username. This might make brute-force attacks easier.","aliases":["GHSA-r37h-j483-cjjm"],"modified":"2026-08-07T17:02:24.111107Z","published":"2021-05-24T23:15:08.820Z","references":[{"type":"ADVISORY","url":"https://github.com/koel/koel/releases/tag/v5.1.4"},{"type":"REPORT","url":"https://huntr.dev/bounties/1-other-koel/koel/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/koel/koel","events":[{"introduced":"0"},{"fixed":"6b7cb88e6dfcb5fb9dd833158f30f40dbe618a8f"}],"database_specific":{"cpe":"cpe:2.3:a:koel:koel:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"5.1.4"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["v5.1.3","v5.1.2","v5.1.1","v5.1.0","v5.0.2","v5.0.1","v5.0.0","v4.4.0","v4.3.1","v4.3.0","v4.2.2","v4.2.1","v4.2.0","v4.1.1","v4.1.0","v4.0.0","v3.7.2","v3.7.1","v3.7.0","v3.6.2","v3.6.1","v3.6.0","v3.5.5","v3.5.4","v3.5.3","v3.5.2","v3.5.1","v3.5.0","v3.4.0","v3.3.1","v3.3.0","v3.2.0","v3.1.1","v3.1.0","v3.0.1","v3.0.0","v2.2.0","v2.1.0","v2.0.2","v2.0.1","v2.0.0","1.0.0-beta"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-33563.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}