CVE-2026-59215 Open WebUI: Private channel messages can be disclosed through cross-channel thread parent_id binding

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, channel thread parent and reply handling did not bind parentid to the channel in the URL, allowing an authenticated user to reference a message from another private or DM channel and disclose...

CVE-2026-59215 Open WebUI: Private channel messages can be disclosed through cross-channel thread parent_id binding

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, channel thread parent and reply handling did not bind parentid to the channel in the URL, allowing an authenticated user to reference a message from another private or DM channel and disclose...

CVE-2026-59213 Open WebUI: Cross-user model-list exposure via static cache key in get_all_models (aiocache key= vs key_builder= misuse)

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.6.27 before 0.10.0, getallmodels handlers in routers/openai.py and routers/ollama.py passed a lambda to aiocache key instead of keybuilder, causing permission-filtered per-user model lists to share a stat...

CVE-2026-59213

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.6.27 before 0.10.0, getallmodels handlers in routers/openai.py and routers/ollama.py passed a lambda to aiocache key instead of keybuilder, causing permission-filtered per-user model lists to share a stat...

CVE-2026-59213

Open WebUI (self-hosted AI platform) is affected in versions 0.6.27–0.10.0 by a bug in get_all_models handlers (routers/openai.py and routers/ollama.py) where a lambda was passed to aiocache key instead of key_builder. This caused permission-filtered per-user model lists to share a static cache e...

CVE-2026-59213 Open WebUI: Cross-user model-list exposure via static cache key in get_all_models (aiocache key= vs key_builder= misuse)

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.6.27 before 0.10.0, getallmodels handlers in routers/openai.py and routers/ollama.py passed a lambda to aiocache key instead of keybuilder, causing permission-filtered per-user model lists to share a stat...

CVE-2026-59217

Open WebUI prior to version 0.10.0 allowed a metadata.knowledge_id value in file uploads to auto-link files to a knowledge base, bypassing the write-access check on /api/v1/knowledge//file/add. This enabled read-only knowledge-base users to add arbitrary files. The issue is fixed in version 0.10....

CVE-2026-59217 Open WebUI: Upload `metadata.knowledge_id` bypasses the knowledge-base write-access check (read-only users can add files to KB)

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, the file upload path accepted metadata.knowledgeid and auto-linked uploaded files to a target knowledge base without applying the write-access check used by /api/v1/knowledge//file/add, allowing...

CVE-2026-59217 Open WebUI: Upload `metadata.knowledge_id` bypasses the knowledge-base write-access check (read-only users can add files to KB)

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, the file upload path accepted metadata.knowledgeid and auto-linked uploaded files to a target knowledge base without applying the write-access check used by /api/v1/knowledge//file/add, allowing...

CVE-2026-59216

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, geteventcall delivered execute:python and execute:tool Socket.IO events to a client-supplied sessionid after checking only that the session was connected, allowing authenticated users who learne...

CVE-2026-59216 Open WebUI: Cross-user code-interpreter and tool execution via unvalidated Socket.IO event-caller session_id

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, geteventcall delivered execute:python and execute:tool Socket.IO events to a client-supplied sessionid after checking only that the session was connected, allowing authenticated users who learne...

CVE-2026-59216

Open WebUI prior to 0.10.0 is vulnerable to cross-user code execution via unvalidated Socket.IO event-caller session_id. The get_event_call path delivers execute:python and execute:tool events to a client-supplied session_id after only confirming the session is connected, enabling an attacker who...

CVE-2026-59216 Open WebUI: Cross-user code-interpreter and tool execution via unvalidated Socket.IO event-caller session_id

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, geteventcall delivered execute:python and execute:tool Socket.IO events to a client-supplied sessionid after checking only that the session was connected, allowing authenticated users who learne...

CVE-2026-59219 Open WebUI: Realtime endpoints accept Redis-revoked JWTs after signout/backchannel logout

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 before 0.10.0 with Redis configured, Socket.IO connect, user-join, join-channels, join-note, and the terminal websocket first-message authentication used decodetoken without the Redis-backed...

CVE-2026-59219

Open WebUI 0.9.0–0.10.0: with Redis configured, the terminal websocket first-message authentication used decode_token without a Redis-backed is_valid_token revocation check, allowing revoked JWTs to continue authenticating realtime connections. Fixed in version 0.10.0. This affects realtime endpo...

CVE-2026-59219 Open WebUI: Realtime endpoints accept Redis-revoked JWTs after signout/backchannel logout

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 before 0.10.0 with Redis configured, Socket.IO connect, user-join, join-channels, join-note, and the terminal websocket first-message authentication used decodetoken without the Redis-backed...

CVE-2026-59715

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.6.16 before 0.10.0, the Socket.IO server is configured with alwaysconnect=True. The ydoc:awareness:update and ydoc:document:leave Socket.IO handlers accepted collaborative-document events without requirin...

CVE-2026-59715

Affected software: Open WebUI self-hosted AI platform. Vulnerability: Unauthenticated access to collaborative-document Socket.IO handlers (ydoc:awareness:update, ydoc:document:leave) that accepted events without authenticated user, enabling unauthorized manipulation of document collaboration stat...

CVE-2026-59715 Open WebUI: Unauthenticated WebSocket Access to Collaborative Document Handlers (ydoc:awareness:update, ydoc:document:leave)

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.6.16 before 0.10.0, the Socket.IO server is configured with alwaysconnect=True. The ydoc:awareness:update and ydoc:document:leave Socket.IO handlers accepted collaborative-document events without requirin...

CVE-2026-59715 Open WebUI: Unauthenticated WebSocket Access to Collaborative Document Handlers (ydoc:awareness:update, ydoc:document:leave)

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.6.16 before 0.10.0, the Socket.IO server is configured with alwaysconnect=True. The ydoc:awareness:update and ydoc:document:leave Socket.IO handlers accepted collaborative-document events without requirin...