CVE-2026-88005

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 accou...

CVE-2026-88006

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...

GHSA-HH89-3R9W-QJ3J n8n: Unauthenticated Persistent Storage Exhaustion via OAuth Dynamic Client Registration Endpoint

Impact The OAuth Dynamic Client Registration endpoints validated field sizes only for redirecturis, leaving clientname and granttypes bounded by presence checks alone. An unauthenticated remote caller could submit arbitrarily large values in either field and have them persisted to the database...

NPM: n8n: Unauthenticated Persistent Storage Exhaustion via OAuth Dynamic Client Registration Endpoint

NPM: n8n: Unauthenticated Persistent Storage Exhaustion via OAuth Dynamic Client Registration Endpoint vulnerability discovered by ? in WordPress Npm n8n versions 2.37.7...

EUVD-2026-74281

n8n: Unauthenticated Persistent Storage Exhaustion via OAuth Dynamic Client Registration Endpoint...

n8n: Unauthenticated Persistent Storage Exhaustion via OAuth Dynamic Client Registration Endpoint

Impact The OAuth Dynamic Client Registration endpoints validated field sizes only for redirecturis, leaving clientname and granttypes bounded by presence checks alone. An unauthenticated remote caller could submit arbitrarily large values in either field and have them persisted to the database...

GHSA-4QG5-CXX4-G927 Open WebUI: Users denied by the OAuth domain allowlist or role policy can still sign in via token exchange

Summary 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 thi...

Open WebUI: Users denied by the OAuth domain allowlist or role policy can still sign in via token exchange

Summary 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 thi...

Incorrect Authorization

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Incorrect Authorization via the OAuth token exchange process. An attacker can gain unauthorized access by exchanging a valid provider access token for a session even if their email domain is not on the...

CVE-2026-88006 Open WebUI: Users denied by the OAuth role policy can still sign in via token exchange

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...

CVE-2026-88006

Open WebUI (a self-hosted AI platform) is affected by an authentication bypass in its OAuth token exchange endpoint from version 0.8.0 through 0.11.1 . The endpoint issues a session for a provider access token without executing the OAuth role management that the normal login callback performs. As...

EUVD-2026-75541

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...

CVE-2026-88006 Open WebUI: Users denied by the OAuth role policy can still sign in via token exchange

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...

CVE-2026-88006 Open WebUI: Users denied by the OAuth role policy can still sign in via token exchange

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...

CVE-2026-88005 Open WebUI: Users denied by the OAuth domain allowlist or role policy can still sign in via token exchange

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 accou...

CVE-2026-88005

Open WebUI versions 0.8.0 through 0.9.0 are affected by a bypass in the OAuth token exchange endpoint . The endpoint issues a valid session for a provider access token without enforcing the email domain allowlist that the standard OAuth login callback applies. As a result, an account whose email ...

EUVD-2026-75540

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 accou...

CVE-2026-88005 Open WebUI: Users denied by the OAuth domain allowlist or role policy can still sign in via token exchange

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 accou...

PT-2026-89453

Name of the Vulnerable Software and Affected Versions Open WebUI versions 0.8.0 through 0.8.9 Description The OAuth token exchange endpoint in backend/open webui/routers/auths.py fails to apply the email domain allowlist that is normally enforced during the OAuth login callback. This occurs becau...

PT-2026-89656

Concrete CMS OAuth callback login path prior to version 9.5.3 did not check whether an account was active or email-validated before establishing a session. A deactivated or unvalidated user with an existing OAuth binding could complete authentication and receive a session that was fully...