Regular Expression Denial of Service (ReDoS) Affecting com.vaadin:vaadin-server Open this link in a new tab package, versions [,7.7.22)

  • Exploit Maturity

    Proof of concept

  • Attack Complexity


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  • snyk-id


  • published

    1 Oct 2020

  • disclosed

    12 Sep 2020

  • credit


Introduced: 12 Sep 2020

CWE-400 Open this link in a new tab

How to fix?

Upgrade com.vaadin:vaadin-server to version 7.7.22 or higher.


com.vaadin:vaadin-server is a Java framework for modern Java web applications.

Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS). EmailValidator catastrophic exponential-time regular expression