CVE-2026-109283 Open WebUI 0.11.1 before 0.11.4 Authorization Bypass via OAuth Token Exchange

Open WebUI from 0.11.1 before 0.11.4 contains an authorization bypass in the OAuth token exchange endpoint, which reads role claims only from the provider's userinfo response and keeps the user's existing role when no roles claim is found, ignoring roles sent only in the ID token. Users with a...

CVE-2026-109283 Open WebUI 0.11.1 before 0.11.4 Authorization Bypass via OAuth Token Exchange

Open WebUI from 0.11.1 before 0.11.4 contains an authorization bypass in the OAuth token exchange endpoint, which reads role claims only from the provider's userinfo response and keeps the user's existing role when no roles claim is found, ignoring roles sent only in the ID token. Users with a...

CVE-2026-109283

Open WebUI from 0.11.1 before 0.11.4 contains an authorization bypass in the OAuth token exchange endpoint, which reads role claims only from the provider's userinfo response and keeps the user's existing role when no roles claim is found, ignoring roles sent only in the ID token. Users with a...

CVE-2026-109283 Open WebUI 0.11.1 before 0.11.4 Authorization Bypass via OAuth Token Exchange

Open WebUI from 0.11.1 before 0.11.4 contains an authorization bypass in the OAuth token exchange endpoint, which reads role claims only from the provider's userinfo response and keeps the user's existing role when no roles claim is found, ignoring roles sent only in the ID token. Users with a...

CVE-2026-109283

Open WebUI versions 0.11.1 before 0.11.4 are vulnerable to an authorization bypass in the OAuth token exchange endpoint. The flaw occurs because the system only reads role claims from the provider's userinfo response and retains the user's existing role if no new claim is found, failing to accoun...

EUVD-2026-97585

Open WebUI from 0.11.1 before 0.11.4 contains an authorization bypass in the OAuth token exchange endpoint, which reads role claims only from the provider's userinfo response and keeps the user's existing role when no roles claim is found, ignoring roles sent only in the ID token. Users with a...

PT-2026-110700

Name of the Vulnerable Software and Affected Versions Open WebUI versions 0.11.1 through 0.11.3 Description An authorization bypass exists in the OAuth token exchange process. The system reads role claims exclusively from the provider's userinfo response and retains the user's current role if no...

CVE-2026-109283: Incorrect Authorization

Open WebUI from 0.11.1 before 0.11.4 contains an authorization bypass in the OAuth token exchange endpoint, which reads role claims only from the provider's userinfo response and keeps the user's existing role when no roles claim is found, ignoring roles sent only in the ID token. Users with a...

CVE-2026-92804: Server-Side Request Forgery (SSRF)

Nango through 0.70.4 fails to validate caller-supplied connection configuration values interpolated into provider token and proxy URL templates. Authenticated attackers can supply malicious configuration values to direct server requests at internal addresses or cloud metadata endpoints, potential...

CVE-2026-19625 IBM Enterprise Build of Quarkus is affected by multiple vulnerabilities

When a Quarkus application has multiple endpoints secured by individual OIDC provider tenants, such as "/oidc-provider1" that is secured by the OIDC Provider 1 and "/oidc-provider2" that is secured by the OIDC Provider 2, and an optional token introspection cache is also enabled, then a valid tok...

CVE-2026-70482

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.0 until 0.11.0, when ENABLEOAUTHTOKENEXCHANGE=True, /oauth/provider/token/exchange accepts a raw provider access token and validates it by calling the provider userinfo endpoint without confirming which...

Open WebUI: Account takeover via OAuth token exchange accepting tokens issued to any client

Summary The OAuth token exchange endpoint accepts a raw provider access token and validates it by calling the provider's userinfo endpoint. A userinfo endpoint reports only that a token is valid, never which OAuth client it was issued to, and the endpoint performed no audience or client check of...

CVE-2026-70482

Open WebUI (self-hosted AI platform) versions 0.8.0–0.11.0 are affected. When ENABLE_OAUTH_TOKEN_EXCHANGE is true, /oauth/{provider}/token/exchange accepts a raw provider access token and validates it via the provider’s userinfo endpoint without confirming which OAuth client issued the token. As ...

CVE-2026-70482 Open WebUI: Account takeover via OAuth token exchange accepting tokens issued to any client

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.0 until 0.11.0, when ENABLEOAUTHTOKENEXCHANGE=True, /oauth/provider/token/exchange accepts a raw provider access token and validates it by calling the provider userinfo endpoint without confirming which...

BIT-AUTHENTIK-2024-47077 authentik cross-provider token validation problems

authentik is an open-source identity provider. Prior to versions 2024.8.3 and 2024.6.5, access tokens issued to one application can be stolen by that application and used to impersonate the user against any other proxy provider. Also, a user can steal an access token they were legitimately issued...

CVE-2026-34224

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.64 and 9.7.0-alpha.8, an attacker who possesses a valid authentication provider token and a single MFA recovery code or SMS one-time password can create multiple...

CVE-2026-34224 Parse Server: MFA single-use token bypass via concurrent authData login requests

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.64 and 9.7.0-alpha.8, an attacker who possesses a valid authentication provider token and a single MFA recovery code or SMS one-time password can create multiple...

GHSA-Q6H8-4J2V-PJG4 Minder trusts client-provided mapping from repo name to upstream ID

Summary When using a modified client or the grpc interface directly, the RegisterRepository call accepts both the repository owner / repo and the repoid. Furthermore, these two are not checked for matching before registering webhooks and data in the database. Details It is possible for an attacke...

Denial of service

Minder is a Software Supply Chain Security Platform. In version 0.0.31 and earlier, it is possible for an attacker to register a repository with a invalid or differing upstream ID, which causes Minder to report the repository as registered, but not remediate any future changes which conflict with...