Medium severity6.5GHSA Advisory· Published May 15, 2026· Updated May 19, 2026
CVE-2026-45666
CVE-2026-45666
Description
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.11, the API /api/v1/notes/{note_id} endpoint lacks proper authorization checks, allowing authenticated users to retrieve notes belonging to other users by guessing or enumerating UUIDs. This results in unauthorized disclosure of potentially sensitive or private user data. This vulnerability is fixed in 0.8.11.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
open-webuiPyPI | < 0.8.11 | 0.8.11 |
Affected products
2<= 0.8.10+ 1 more
- (no CPE)range: <= 0.8.10
- cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*range: <0.8.11
Patches
Vulnerability mechanics
References
5- github.com/open-webui/open-webui/security/advisories/GHSA-x3qm-p8hr-3c3hnvdExploitPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-x3qm-p8hr-3c3hghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-45666ghsaADVISORY
- github.com/open-webui/open-webui/commit/de3317e26bb67a2a7ea015a183bbd1d369880ebdghsaWEB
- github.com/open-webui/open-webui/releases/tag/v0.8.11ghsaWEB
News mentions
0No linked articles in our index yet.