Medium severity6.5GHSA Advisory· Published Sep 10, 2026· Updated Sep 18, 2026
CVE-2026-88005
CVE-2026-88005
Description
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.0 until 0.9.0, Open WebUI's OAuth token exchange endpoint issues a session for a provider access token without applying the email domain allowlist that the normal OAuth login callback enforces. An account whose email domain the login callback would refuse could still obtain a working session through this endpoint. This issue is fixed in version 0.9.0.
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 | >= 0.8.0, < 0.9.0 | 0.9.0 |
Affected products
2>= 0.8.0, < 0.9.0+ 1 more
- (no CPE)range: >= 0.8.0, < 0.9.0
- cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*range: >=0.8.0,<0.9.0
Patches
Vulnerability mechanics
References
5- github.com/open-webui/open-webui/commit/fb5ef978bfb451c3f2221931e08e54250cec58canvdPatchWEB
- github.com/open-webui/open-webui/pull/23639nvdPatchWEB
- github.com/open-webui/open-webui/security/advisories/GHSA-4qg5-cxx4-g927nvdPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-4qg5-cxx4-g927ghsaADVISORY
- github.com/open-webui/open-webui/releases/tag/v0.9.0ghsaWEB
News mentions
1- Open WebUI: 18 Vulnerabilities Disclosed, Patch Released in Version 0.11.1Vypr Intelligence · Sep 10, 2026