Answer in brief
CVE-2026-88006 records a Medium severity (CVSS 6.5) vulnerability in Open WebUI: Users denied by the OAuth role policy can still sign in via token exchange. The current sources do not mark it as known exploited. The current feed maps open-webui/open-webui (generic), open-webui (pip), open-webui (pypi). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps open-webui/open-webui (generic), open-webui (pip), open-webui (pypi). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| open-webui/open-webuigeneric | >=0.8.0 <0.11.1 | 0.11.1 |
| open-webuipip | >=0.8.0,<0.11.1 | 0.11.1 |
| open-webuipypi | >=0.8.0 <0.11.1 | 0.11.1 |
Published upstream
Sep 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 10, 2026
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.0 until 0.11.1, Open WebUI's OAuth token exchange endpoint issues a session for a provider access token without running the OAuth role management that the normal OAuth login callback runs. A user whose provider roles the login callback would refuse, or would demote, could still obtain a working session at their existing role through this endpoint. This issue is fixed in version 0.11.1.
Quoted source text, attributed separately from HOL analysis.