{"id":"CVE-2021-31409","details":"Unsafe validation RegEx in EmailValidator component in com.vaadin:vaadin-compatibility-server versions 8.0.0 through 8.12.4 (Vaadin versions 8.0.0 through 8.12.4) allows attackers to cause uncontrolled resource consumption by submitting malicious email addresses.","aliases":["GHSA-c332-w4jm-55wv"],"modified":"2026-07-08T21:26:47.323528Z","published":"2021-05-06T13:15:12.633Z","references":[{"type":"ADVISORY","url":"https://vaadin.com/security/cve-2021-31409"},{"type":"FIX","url":"https://github.com/vaadin/framework/issues/12240"},{"type":"FIX","url":"https://github.com/vaadin/framework/pull/12241"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/vaadin/framework","events":[{"introduced":"fb74e3d03793a7f9c433a7be583d55e3e2d1c35d"},{"last_affected":"384e98e10c627921f663b5037ec8c13e46969ca7"}],"database_specific":{"cpe":"cpe:2.3:a:vaadin:vaadin:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"8.0.0"},{"last_affected":"8.12.4"}],"source":"CPE_RANGE"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-31409.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:N/I:N/A:H"}]}