Vulnerability · Published Apr 23, 2021 · Assigned by Vaadin

CVE-2021-31405Regular expression denial of service (ReDoS) in EmailField component in Vaadin 14 and 15-17

High 7.5

In plain English

A high-severity uncontrolled resource consumption in Vaadin from Vaadin. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 66% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)1.1%top 33.5% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Unsafe validation RegEx in EmailField component in com.vaadin:vaadin-text-field-flow versions 2.0.4 through 2.3.2 (Vaadin 14.0.6 through 14.4.3), and 3.0.0 through 4.0.2 (Vaadin 15.0.0 through 17.0.10) allows attackers to cause uncontrolled resource consumption by submitting malicious email addresses.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Maven	com.vaadin:vaadin-bom	14.4.4	GHSA-2wqp-jmcc-mc77
Maven	com.vaadin:vaadin-bom	17.0.11	GHSA-2wqp-jmcc-mc77

Affected products (as reported)

Vendor	Product	Versions
Vaadin	Vaadin	14.0.6 – before *
Vaadin	vaadin-text-field-flow	2.0.4 – before *

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

References

https://vaadin.com/security/cve-2021-31405 x_refsource_MISC
https://github.com/vaadin/flow-components/pull/442 x_refsource_MISC