CVE-2020-36320
Regular expression denial of service (ReDoS) in EmailValidator class in Vaadin 7
7.5
HIGH
CVSS 3.1
EPSS 0.72%
Description
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. - https://vaadin.com/security/cve-2020-36320
How to fix CVE-2020-36320
To remediate CVE-2020-36320, upgrade the affected package to a fixed version below.
- —upgrade to 7.7.22 or later
- —upgrade to 7.7.22 or later
Is CVE-2020-36320 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- >= 7.0.0.beta1, < 7.7.22
- >= 7.0.0.beta1, < 7.7.22
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |