CVE-2020-36320

HighCVSS 7.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-400

Affected software

Vendor	Product	Versions
Vaadin	Vaadin	>= 7.0.0, < *
Vaadin	vaadin-server	>= 7.0.0, < *

References

https://github.com/vaadin/framework/issues/7757Exploit, Patch, Third Party Advisory
https://github.com/vaadin/framework/pull/12104Patch, Third Party Advisory
https://vaadin.com/security/cve-2020-36320Vendor Advisory
https://github.com/vaadin/framework/issues/7757Exploit, Patch, Third Party Advisory
https://github.com/vaadin/framework/pull/12104Patch, Third Party Advisory
https://vaadin.com/security/cve-2020-36320Vendor Advisory

Timeline

Published: Apr 23, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2020

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