CVE-2026-88006Open WebUI: Users denied by the OAuth role policy can still sign in via token exchange
Updated under an hour ago ()
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It affects open-webui and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- Weakness (CWE)
- CWE-863
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Analyzed
- Record last updated
- Sep 10, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
open-webui open-webui open_webui:open_webui (from the name) | from 0.8.0, < 0.11.1 | CNA record |
openwebui open_webui openwebui:open_webui | from 0.8.0 before 0.11.1 | NVD |
References
- https://github.com/open-webui/open-webui/security/advisories/GHSA-wvm9-9g5j-623fx-refsource-confirm, patch
- https://github.com/open-webui/open-webui/commit/d799e81edbdc971c6deb096b6474cd95b93504bfx-refsource-misc, patch
- https://github.com/open-webui/open-webui/releases/tag/v0.11.1x-refsource-misc, release-notes
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.