CVE-2021-31405

HIGH
Published Apr 23, 20215y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Apr 23, 2021 5y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-400 Uncontrolled Resource Consumption Resource Mgmt

Affected Products 4

VendorProductVersionRange
vaadinflow*≥2.0.4  –  <2.3.3
vaadinflow*≥3.0.0  –  <4.0.3
vaadinvaadin*≥14.0.6  –  <14.4.4
vaadinvaadin*≥15.0.0  –  <17.0.11

References 2

  • github.com https://github.com/vaadin/flow-components/pull/442
    PatchThird Party Advisory
  • vaadin.com https://vaadin.com/security/cve-2021-31405
    Vendor Advisory

Remediation

  • github.com https://github.com/vaadin/flow-components/pull/442
    PatchThird Party Advisory