CVE-2020-36319: Vaadin Flow

Medium severity, CVSS 6.5. EPSS: 1% chance of exploitation in the next 30 days.

Insecure configuration of default ObjectMapper in com.vaadin:flow-server versions 3.0.0 through 3.0.5 (Vaadin 15.0.0 through 15.0.4) may expose sensitive data if the application also uses e.g. @RestController

Affected products

• Vaadin Flow: from 3.0.0, before 3.0.6 (fixed in 3.0.6)
• Vaadin Vaadin: from 15.0.0, before 15.0.5 (fixed in 15.0.5)

Published 2021-04-23. Last modified 2026-06-17.