CVE-2021-31409

—

CVSS 3.1

7.5 high

EPSS

2%p75

Published

May 6, 2021 (May 6, 2021)

Modified

Jun 17, 2026

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.

Vendors: vaadin
Products: vaadin
Weakness: CWE-400
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (1.7%)

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