{"id":"CVE-2021-31866","details":"Redmine before 4.0.9 and 4.1.x before 4.1.3 allows an attacker to learn the values of internal authentication keys by observing timing differences in string comparison operations within SysController and MailHandlerController.","aliases":["BIT-redmine-2021-31866"],"modified":"2026-04-10T04:32:35.705298Z","published":"2021-04-28T07:15:07.663Z","references":[{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/05/msg00013.html"},{"type":"ADVISORY","url":"https://www.redmine.org/news/131"},{"type":"ADVISORY","url":"https://www.redmine.org/projects/redmine/wiki/Security_Advisories"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/redmine/redmine","events":[{"introduced":"0"},{"fixed":"ffaff01ccf0548c22f2e24486162988e4eda8575"},{"introduced":"f5e62c8b125a09b2b66192125708d1aea492353c"},{"fixed":"d1b7905ca9af8075542dad8c0fd671c6c82fd32f"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"4.0.9"},{"introduced":"4.1.0"},{"fixed":"4.1.3"}]}}],"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"9.0"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-31866.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"}]}