CVE-2025-9467: Possibility to bypass file upload validation on the server-side
Description 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 upgrade to a more recent Vaadin version.
Other sources
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 include:
Product version Vaadin 7.0.0 - 7.7.47 Vaadin 8.0.0 - 8.28.1 Vaadin 14.0.0 - 14.13.0 Vaadin 23.0.0 - 23.6.1 Vaadin 24.0.0 - 24.7.6
Mitigation Upgrade to 7.7.48 Upgrade to 8.28.2 Upgrade to 14.13.1 Upgrade to 23.6.2 Upgrade to 24.7.7 or newer
Please note that Vaadin versions 10-13 and 15-22 are no longer supported and you should update either to the latest 14, 23, 24 version.
Artifacts Maven coordinatesVulnerable versionsFixed versioncom.vaadin:vaadin-server 7.0.0 - 7.7.47 ≥7.7.48 com.vaadin:vaadin-server 8.0.0 - 8.28.1 ≥8.28.2 com.vaadin:vaadin 14.0.0 - 14.13.0 ≥14.13.1 com.vaadin:vaadin23.0.0 - 23.6.1 ≥23.6.2 com.vaadin:vaadin24.0.0 - 24.7.6 ≥24.7.7com.vaadin:vaadin-upload-flow 2.0.0 - 14.13.0 ≥14.13.1 com.vaadin:vaadin-upload-flow 23.0.0 - 23.6.1 ≥23.6.2 com.vaadin:vaadin-upload-flow 24.0.0 - 24.7.6 ≥24.7.7
— MITRE
Affected Software
Remediation
Information
Event History
Frequently Asked Questions
What is the severity of CVE-2025-9467?
CVE-2025-9467 is considered a critical vulnerability due to the potential bypass of upload validation.
How do I fix CVE-2025-9467?
To fix CVE-2025-9467, users should upgrade to the latest version of Vaadin that addresses the vulnerability.
What versions are affected by CVE-2025-9467?
CVE-2025-9467 affects Vaadin versions from 7.0.0 to 7.7.47, 8.0.0 to 8.28.1, 14.0.0 to 14.13.0, 23.0.0 to 23.6.1, and 24.0.0 to 24.7.6.
What is the impact of CVE-2025-9467?
The impact of CVE-2025-9467 includes the potential for unauthorized access to upload functionalities, which can lead to data breaches.
Is there a temporary mitigation for CVE-2025-9467?
Yes, a temporary mitigation involves implementing additional validation checks in the upload process until the upgrade can be performed.