Regular expression denial of service (ReDoS) in EmailValidator class in Vaadin 7
Unsafe validation RegEx in EmailValidator class in com.vaadin:vaadin-server versions 7.0.0 through 7.7.21 (Vaadin 7.0.0 through 7.7.21) allows attackers to cause uncontrolled resource consumption by submitting malicious email addresses.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | com.vaadin:vaadin-bom | >= 7.0.0.beta1, < 7.7.22 | 7.7.22 |
| Java / Kotlin (Maven) | com.vaadin:vaadin-server | >= 7.0.0.beta1, < 7.7.22 | 7.7.22 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
CWE-400- Platform
- Java / Kotlin (Maven)
- Package
com.vaadin:vaadin-bom, com.vaadin:vaadin-server- Disclosed
- 19.04.2021
- Updated
- 11.10.2026 12:21
Sources and licenses
OSV / GitHub Advisory Database - GHSA-42j4-733x-5vcf - CC BY 4.0
Vulnerability history: com.vaadin:vaadin-bom
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 18
- First → latest
- 04.2021 11.2021
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 5
- Medium 10
- Low 3
Disclosures per year
- 2021: 18
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
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Regular expression denial of service (ReDoS) in EmailValidator class in Vaadin 7 this entry
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