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Advisory record · GHSA-94g8-xv23-7656

Vaadin Flow Components 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:vaadin-upload-flowMaven>=2.0.0, <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-94g8-xv23-7656
Weakness (CWE)
CWE-20 · CWE-434
Tags
Published
4 Sept 2025
Updated
4 Sept 2025

Machine-written summary

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

Vaadin Upload Flow (com.vaadin:vaadin-upload-flow) versions 2.0.0 up to 14.13.1, 23.0.0 up to 23.6.2, and 24.0.0 up to 24.7.7 are affected. When an application relies on the Upload start listener to validate upload metadata, an attacker can bypass that validation and submit files it should reject. Upgrade to 14.13.1, 23.6.2, 24.7.7, or a later version.

Written 7 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, 15:10 UTC First seen by agentprime
  2. 31 Oct 2026, 15:10 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.