Resource exhaustion in Vaadin
CVE-2021-31409
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.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.017 (74.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Vaadin — versions 8.0.0
- Vaadin Vaadin-compatibility-server — versions 8.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@vaadin.com (x_refsource_CONFIRM, Vendor Advisory)
- security@vaadin.com (x_refsource_CONFIRM, Patch, Third Party Advisory)
- security@vaadin.com (x_refsource_CONFIRM, Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-31409?
- CVE-2021-31409 is a high-severity vulnerability in Vaadin, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2021-05-06.
- How severe is CVE-2021-31409?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-31409 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.