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Advisory record · GHSA-c7v7-rqfm-f44j

Vaadin Platform possible file bypass via upload validation on the server-side

CVSS 4.0, no score published

Published by the GitHub Advisory Database at 4 Sept 2025, 15:55 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
com.vaadin:vaadinMaven>=14.0.0, <14.13.1 || >=23.0.0, <23.6.2 || >=24.0.0, <24.7.714.13.1, 23.6.2, 24.7.7
Identifiers
GHSA-c7v7-rqfm-f44j
Weakness (CWE)
CWE-20 · CWE-434
Tags
Published
4 Sept 2025
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Vaadin Platform (com.vaadin:vaadin) versions 14.0.0 to before 14.13.1, 23.0.0 to before 23.6.2, and 24.0.0 to before 24.7.7 are affected. When an application relies on the Upload component's start listener to validate upload metadata, an attacker can bypass that validation to upload files that should have been rejected. Upgrade to Vaadin 14.13.1, 23.6.2, 24.7.7, or later. The source gives few details on the exact conditions for the bypass.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
Not published None 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/S:N/AU:N/R:U/V:D/RE:L/U:Green GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS No score.

Timeline

  1. 31 Oct 2026, 14:17 UTC First seen by agentprime
  2. 31 Oct 2026, 14:17 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.