CVE-2026-87013: Loop with Unreachable Exit Condition

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, POST /api/v1/folders/id/update/parent allowed a user to place a folder under itself or one of its descendants, while the folder tree walks used by DELETE /api/v1/folders/id and POST...

CVE-2026-87011: Asymmetric Resource Consumption (Amplification)

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.1, the unauthenticated POST /oauth/backchannel-logout handler in backend/openwebui/utils/oauth.py fetched the OIDC discovery document and signing keys before validating a submitted logout...

PT-2026-89162

Name of the Vulnerable Software and Affected Versions Open WebUI versions 0.6.27 through 0.11.0 Description An issue exists in the tool loading routine within backend/open webui/utils/tools.py where a cookie jar is captured from the enclosing connection loop instead of being bound to each externa...

CVE-2026-87017: Exposure of Sensitive Information to an Unauthorized Actor

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.7.0 until 0.11.1, the built-in knowledge search tool passed the caller's readable knowledge identifiers through a metadata filter, but the search methods in eleven shipped vector backends ignored that...

CVE-2026-87994: Authorization Bypass Through User-Controlled Key

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.5 until 0.11.1, the channel branch of chatcompletion in backend/openwebui/main.py checked channel write access and channel membership for a supplied messageid but did not verify that the calling user...

CVE-2026-87996: Time-of-check Time-of-use (TOCTOU) Race Condition

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.6 until 0.11.1, SafePlaywrightURLLoader in backend/openwebui/retrieval/web/utils.py validated a user-controlled hostname in Python and then let the Playwright browser resolve it again in the sync and...

PT-2026-89168

Name of the Vulnerable Software and Affected Versions Open WebUI versions 0.7.0 through 0.11.0 Description The built-in knowledge search tool fails to properly restrict access to knowledge bases when using specific vector backends. While the tool identifies which knowledge bases a user is permitt...

CVE-2026-87012: Improper Check for Unusual or Exceptional Conditions

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.1, backend/openwebui/models/calendar.py stored the calendar event meta.alertminutes value without type validation and the shared upcoming-event scheduler compared that value numerically. An...

PT-2026-89176

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.11.1 Description An issue exists where the platform incorrectly identifies certain internal addresses as external by relying solely on Python's globally routable address classification. This allows an authenticat...

PT-2026-89167

Name of the Vulnerable Software and Affected Versions Open WebUI versions 0.6.41 through 0.11.0 Description On SQLite deployments, the lookup process mapping an external identity to a local account performs a substring match instead of an exact match. This occurs because the contains operator on...

PT-2026-88866

The Groundhogg — CRM, Newsletters, and Marketing Automation WordPress plugin before 4.7.2 does not restrict the redirect target of its email preference confirmation flow to the site's own host, allowing unauthenticated attackers to redirect visitors to an arbitrary external URL by way of a crafte...

PT-2026-88912

URL redirection to untrusted site 'open redirect' vulnerability in Yordam Informatics Technology Consulting, Training, and Electronic Systems Industry and Trade Inc. Library Information and Document Automation Program allows Phishing. This issue affects Library Information and Document Automation...

PT-2026-89244

This module allows you to configure your Drupal site as a SAML 2.0 Service Provider so that users can authenticate through an external identity provider. The miniorange saml module does not sufficiently validate certain user-supplied URLs before performing redirects. An attacker could cause users...

CVE-2026-88001: Server-Side Request Forgery (SSRF)

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.5 until 0.11.1, server-side web fetches did not reapply WEBFETCHFILTERLIST or private-address controls to HTTP redirect destinations when AIOHTTPCLIENTALLOWREDIRECTS was enabled. An authenticated user...

PT-2026-89177

Summary Chat histories are stored as an unvalidated JSON object. After a message is deleted, the code that picks the chat's new current message walked down the childrenIds links without recording where it had already been. Any account with the default user role could store a chat whose messages...

CVE-2026-87016: Improper Neutralization of Wildcards or Matching Symbols

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.6.41 until 0.11.1, getuserbyoauthsub and getuserbyscimexternalid in backend/openwebui/models/users.py used JSON contains matching that compiled to SQL LIKE substring matching on SQLite. An OAuth subject...

PT-2026-89172

Name of the Vulnerable Software and Affected Versions Open WebUI versions 0.8.11 through 0.11.0 Description An issue exists where the in-app port preview renders content in an iframe sandbox that simultaneously grants allow-scripts and allow-same-origin. Because the terminal proxy serves this...

PT-2026-89175

Name of the Vulnerable Software and Affected Versions Open WebUI versions 0.10.0 through 0.11.0 Description An issue exists in the knowledge base delete handler where a non-administrator user with write access to an external knowledge base can delete the shared instance configuration. This occurs...

CVE-2026-87014: Insufficient Session Expiration

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.1, role synchronization in backend/openwebui/routers/auths.py and backend/openwebui/utils/oauth.py updated an administrator's database role without invalidating the user record cached by...

CVE-2026-87997: Authorization Bypass Through User-Controlled Key

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, POST /api/chat/completions and POST /api/v1/chat/completions in backend/openwebui/main.py copied a client-supplied folderid into a new chat without applying the folder write-access chec...