Description
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.
Remediation
References
https://github.com/vaadin/framework/issues/12240
https://github.com/vaadin/framework/pull/12241
https://vaadin.com/security/cve-2021-31409
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