| Component | Open WebUI |
| Severity | high (CVSS 7.1) |
| CVSS vector | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L |
| Published (NVD) | 2026-06-23 |
| Last modified | 2026-06-25 |
| Affected versions | open_webui < 0.9.6 |
| Fixed in | 0.9.6 |
| Weakness | CWE-284CWE-285CWE-862 |
| CISA KEV | not listed |
NVD description
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI lets a user who can create, update, or import workspace models store arbitrary meta.knowledge entries on their model without checking whether they own or can read the referenced files. Open WebUI then treats meta.knowledge entries of type file as an authorization source in two places: the built-in view_file tool reads the file's extracted text, and has_access_to_file()'s model branch authorizes the file content and file delete endpoints. A malicious model owner can therefore attach another user's file ID to their model metadata and read or delete that private file. This vulnerability is fixed in 0.9.6.
What to do
- Upgrade Open WebUI to
0.9.6or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
Read more
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