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OpenAdvisories
High · 7.3 CVE-2026-44566 EUVD-2026-30641GHSA-9pgh-j74g-qj6mPYSEC-2026-2717

Open WebUI: Arbitrary File Upload and Path Traversal

Published May 15, 2026 · Updated May 19, 2026 · Assigned by GitHub_M

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.1.124, when attaching files to a promp, the name of the file is derived from the original HTTP upload request and is not validated or sanitized. This allows for users to upload files with names containing dot-segments in the file path and traverse out of the intended uploads directory. Effectively, users can upload files anywhere on the filesystem the user running the web server has permission. This vulnerability is fixed in 0.1.124.

Affected products

VendorProductAffectedFixed
open-webui open-webui < 0.1.124 —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI open-webui < 0.1.124 0.1.124 GHSA-9pgh-j74g-qj6m

References