CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NCVE-2021-31407
High (7.5) in vaadin. EPSS 2.4% chance of exploitation in the next 30 days. Fixed in com.vaadin:flow-server 2.4.8, 6.0.1.
Vulnerability in OSGi integration in com.vaadin:flow-server versions 1.2.0 through 2.4.7 (Vaadin 12.0.0 through 14.4.9), and 6.0.0 through 6.0.1 (Vaadin 19.0.0) allows attacker to access application classes and resources on the server via crafted HTTP request.
Severity
- EPSS
- 2.4% chance of exploitation in the next 30 days; higher than 83% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-668, CWE-402
- Published
- Modified
- Record from
- the NVD, synced
Affected
- vaadin:flow
- vaadin:vaadin
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-25xc-jwfq-39jw | Maven | com.vaadin:flow-server | >=1.2.0 <2.4.8 | 2.4.8 |
| GHSA-25xc-jwfq-39jw | Maven | com.vaadin:flow-server | >=6.0.0 <6.0.1 | 6.0.1 |