Description

Unsafe validation RegEx in EmailValidator class in com.vaadin:vaadin-server versions 7.0.0 through 7.7.21 (Vaadin 7.0.0 through 7.7.21) allows attackers to cause uncontrolled resource consumption by submitting malicious email addresses.

Remediation

References

https://github.com/vaadin/framework/issues/7757

https://github.com/vaadin/framework/pull/12104

https://vaadin.com/security/cve-2020-36320

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Severity

High

Classification

CWE-400 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Tags

Exploit Patch Third Party Advisory Vendor Advisory