vaadin framework vulnerabilities (CVE)

CVE records published for vaadin framework, newest first. Follow to get an email when a new one appears.

4 results
2.3Low
CVE-2026-110737

Push Endpoint Returns Permissive CORS Headers

vaadin vaadin; vaadin flow; vaadin framework

The push endpoint of a Vaadin application that uses server push reflects the request Origin into the Access-Control-Allow-Origin response header and allows credentials, because Flow configures Atmosphere with DROP_ACCESS_CONTROL_ALLOW_ORIGIN_HEADER set to fal…

4.8Medium
CVE-2025-15022

Cross-site scripting in Action caption

vaadin vaadin; vaadin framework; vaadin vaadin-spreadsheet-flow

Action captions in Vaadin accept HTML by default but were not sanitized, potentially allowing Cross-site Scripting (XSS) if caption content is derived from user input. In Vaadin Framework 7 and 8, the Action class is a general-purpose class that may be used …

5.3Medium
CVE-2025-9467

Possibility to bypass file upload validation on the server-side

vaadin vaadin; vaadin framework; vaadin vaadin-upload-flow

When the Vaadin Upload's start listener is used to validate metadata about an incoming upload, it is possible to bypass the upload validation. Users of affected versions should apply the following mitigation or upgrade. Releases that have fixed this issue …