Open WebUI: Open WebUI Arbitrary File Write, Delete via Path Traversal
Open WebUI
More for Open WebUI RSS feed for Open WebUI
- Severity
- High, CVSS 8.1
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- Record
- CVE-2026-44565
- Affects
- Open WebUI
- Known exploited
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Published
- Record first published by the source
- May 15, 2026
- Source last modified
- June 17, 2026
Description
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.6.10, when uploading an audio file, 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 0.6.10.
Description quoted from the NVD record.
Who is affected
Open WebUI is a chat program your organization runs on its own computers to talk with AI language models, and it can work entirely offline. This flaw affects versions before 0.6.10. It is in the audio file upload feature: the name of an uploaded audio file is not checked, so a user with an account can choose a name that steps outside the folder meant for uploads. That lets the user place files anywhere on the server that the account running Open WebUI is allowed to write to. This flaw is rated High.
What to do
- If someone on your staff installed or runs Open WebUI, ask them to check which version is in use on your server.
- Have that person update Open WebUI to version
0.6.10or later, which fixes this flaw. - If an IT provider or vendor runs Open WebUI for your organization, send them this advisory and ask when the update will be done.
- For details about the fix, check the vendor advisory linked on this page.
Analysis written from the source record as of June 17, 2026 and reviewed before publishing.