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Status published
High
CVE-2021-31409
Server session is not invalidated when logout() helper method of Authentication module is used in Vaadin 18-19
Vulnerability Description
Unsafe validation RegEx in EmailValidator component in com.vaadin:vaadin-compatibility-server versions 8.0.0 through 8.12.4 (Vaadin versions 8.0.0 through 8.12.4) allows attackers to cause uncontrolled resource consumption by submitting malicious email addresses.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- This issue was discovered and responsibly reported by Stefan Penndorf.
References
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Affected Vendor
Vaadin
View all reports →Affected Software
Vaadin, vaadin-compatibility-server
Vulnerable Versions:
8.0.0
Timeline
Official Publish:
May 5th, 2021
Last Modified:
September 17th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H