CVSS 3.1
7.8 highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCVE-2021-31411
High (7.8) in vaadin. EPSS 0.2% chance of exploitation in the next 30 days. Fixed in com.vaadin:vaadin-bom 14.5.3, 19.0.5.
Insecure temporary directory usage in frontend build functionality of com.vaadin:flow-server versions 2.0.9 through 2.5.2 (Vaadin 14.0.3 through Vaadin 14.5.2), 3.0 prior to 6.0 (Vaadin 15 prior to 19), and 6.0.0 through 6.0.5 (Vaadin 19.0.0 through 19.0.4) allows local users to inject malicious code into frontend resources during application rebuilds.
Severity
- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 14% of CVEs (scores of 2026-10-31)
- CWE
- CWE-379
- Published
- Modified
- Record from
- the NVD, synced
Affected
- vaadin:flow
- vaadin:vaadin
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-p826-8vhq-h439 | Maven | com.vaadin:vaadin-bom | >=14.0.3 <14.5.3 | 14.5.3 |
| GHSA-p826-8vhq-h439 | Maven | com.vaadin:vaadin-bom | >=15.0.0 <19.0.5 | 19.0.5 |