{"id":"CVE-2021-31405","aliases":["EUVD-2021-0740","GHSA-2wqp-jmcc-mc77"],"status":"published","title":"Regular expression denial of service (ReDoS) in EmailField component in Vaadin 14 and 15-17","description":"Unsafe validation RegEx in EmailField component in com.vaadin:vaadin-text-field-flow versions 2.0.4 through 2.3.2 (Vaadin 14.0.6 through 14.4.3), and 3.0.0 through 4.0.2 (Vaadin 15.0.0 through 17.0.10) allows attackers to cause uncontrolled resource consumption by submitting malicious email addresses.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01127,"percentile":0.66759,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-400"],"published":"2021-04-19T14:47:34Z","modified":"2026-10-25T01:16:50Z","fixes":[{"ecosystem":"Maven","package":"com.vaadin:vaadin-bom","fixed_in":["14.4.4","17.0.11"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"com.vaadin:vaadin-bom","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"14.0.6"},{"fixed":"14.4.4"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"com.vaadin:vaadin-bom","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"15.0.0"},{"fixed":"17.0.11"}]}]},{"source":"osv","ecosystem":"Maven","package":"com.vaadin:vaadin-bom","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"14.0.6"},{"fixed":"14.4.4"}]}],"versions":["14.0.10","14.0.11","14.0.12","14.0.13","14.0.14","14.0.15","14.0.6","14.0.7","14.0.8","14.0.9","14.1.0","14.1.1","14.1.16","14.1.17","14.1.18","14.1.19","14.1.2","14.1.20","14.1.21","14.1.22","14.1.23","14.1.24","14.1.25","14.1.26","14.1.27","14.1.28","14.1.3","14.1.4","14.1.5","14.2.0","14.2.1","14.2.2","14.2.3","14.3.0","14.3.1","14.3.2","14.3.3","14.3.4","14.3.5","14.3.6","14.3.7","14.3.8","14.3.9","14.4.0","14.4.1","14.4.2","14.4.3"]},{"source":"osv","ecosystem":"Maven","package":"com.vaadin:vaadin-bom","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"15.0.0"},{"fixed":"17.0.11"}]}],"versions":["15.0.0","15.0.1","15.0.2","15.0.3","15.0.4","15.0.5","15.0.6","16.0.0","16.0.1","16.0.2","16.0.3","16.0.4","16.0.5","17.0.0","17.0.1","17.0.10","17.0.2","17.0.3","17.0.4","17.0.6","17.0.7","17.0.8","17.0.9"]}],"products":[{"vendor":"vaadin","product":"flow"},{"vendor":"vaadin","product":"vaadin"},{"vendor":"vaadin","product":"vaadin-text-field-flow"}],"references":[{"url":"https://vaadin.com/security/cve-2021-31405","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://github.com/vaadin/flow-components/pull/442","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://github.com/vaadin/platform/security/advisories/GHSA-2wqp-jmcc-mc77","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-31405","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-2wqp-jmcc-mc77"}],"sources":{"cve":[{"id":"CVE-2021-31405","title":"Regular expression denial of service (ReDoS) in EmailField component in Vaadin 14 and 15-17","description":"Unsafe validation RegEx in EmailField component in com.vaadin:vaadin-text-field-flow versions 2.0.4 through 2.3.2 (Vaadin 14.0.6 through 14.4.3), and 3.0.0 through 4.0.2 (Vaadin 15.0.0 through 17.0.10) allows attackers to cause uncontrolled resource consumption by submitting malicious email addresses.","status":"published","published":"2021-04-23T16:05:41.259Z","modified":"2024-09-17T02:32:47.63Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:33:05.331617Z"}],"euvd":[{"id":"EUVD-2021-0740","description":"Unsafe validation RegEx in EmailField component in com.vaadin:vaadin-text-field-flow versions 2.0.4 through 2.3.2 (Vaadin 14.0.6 through 14.4.3), and 3.0.0 through 4.0.2 (Vaadin 15.0.0 through 17.0.10) allows attackers to cause uncontrolled resource consumption by submitting malicious email addresses.","status":"published","published":"2021-04-23T16:05:41Z","modified":"2024-09-17T02:32:47Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T00:28:39.580336Z"}],"ghsa":[{"id":"GHSA-2wqp-jmcc-mc77","title":"Regular expression denial of service (ReDoS) in EmailField component in Vaadin 14 and 15-17","description":"Unsafe validation RegEx in `EmailField` component in `com.vaadin:vaadin-text-field-flow` versions 2.0.4 through 2.3.2 (Vaadin 14.0.6 through 14.4.3), and 3.0.0 through 4.0.2 (Vaadin 15.0.0 through 17.0.10) allows attackers to cause uncontrolled resource consumption by submitting malicious email addresses.\n\n- https://vaadin.com/security/cve-2021-31405","status":"published","published":"2021-04-19T14:47:34Z","modified":"2023-02-01T05:05:25Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:36:34.260786Z"}],"nvd":[{"id":"CVE-2021-31405","description":"Unsafe validation RegEx in EmailField component in com.vaadin:vaadin-text-field-flow versions 2.0.4 through 2.3.2 (Vaadin 14.0.6 through 14.4.3), and 3.0.0 through 4.0.2 (Vaadin 15.0.0 through 17.0.10) allows attackers to cause uncontrolled resource consumption by submitting malicious email addresses.","status":"published","published":"2021-04-23T16:15:08.687Z","modified":"2026-06-17T03:51:43.17Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:06:52.03307Z"}],"osv":[{"id":"CVE-2021-31405","description":"Unsafe validation RegEx in EmailField component in com.vaadin:vaadin-text-field-flow versions 2.0.4 through 2.3.2 (Vaadin 14.0.6 through 14.4.3), and 3.0.0 through 4.0.2 (Vaadin 15.0.0 through 17.0.10) allows attackers to cause uncontrolled resource consumption by submitting malicious email addresses.","status":"published","published":"2021-04-23T16:15:08.687Z","modified":"2026-10-25T01:16:50.757957134Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:19.483607Z"},{"id":"GHSA-2wqp-jmcc-mc77","title":"Regular expression denial of service (ReDoS) in EmailField component in Vaadin 14 and 15-17","description":"Unsafe validation RegEx in `EmailField` component in `com.vaadin:vaadin-text-field-flow` versions 2.0.4 through 2.3.2 (Vaadin 14.0.6 through 14.4.3), and 3.0.0 through 4.0.2 (Vaadin 15.0.0 through 17.0.10) allows attackers to cause uncontrolled resource consumption by submitting malicious email addresses.\n\n- https://vaadin.com/security/cve-2021-31405","status":"published","published":"2021-04-19T14:47:34Z","modified":"2023-11-08T04:05:48.221232Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:46:35.050232Z"}]}}