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EUVD-2026-367820

2026-10-02T14:01:10.032742+00:00

EUVD-2026-367820

fkie_cve-2025-9467

2026-10-02T14:01:10.032777+00:00

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

GHSA-9gfh-4fwj-w3rj — Vaadin Framework possible file bypass via upload validation on the server-side

2026-10-02T14:01:10.032825+00:00

Affected: Maven: com.vaadin:vaadin-server

### 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.

WID-SEC-W-2025-1955 — Vaadin: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen

2026-10-02T14:01:10.032852+00:00

Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Vaadin ausnutzen, um Sicherheitsvorkehrungen zu umgehen.