2408 matches found
PT-2026-67926
Summary A user with write access to one knowledge base could delete directories, and drop file embeddings, belonging to knowledge bases they do not control. The sync cleanup endpoint verified write access on the knowledge base named in the URL and then acted on the directory and file ids supplied...
PT-2026-67900
Summary The built-in knowledge search tools let a chat participant choose the pattern used to grep knowledge files. Patterns containing regex metacharacters were compiled with Python's backtracking re engine and run against every line of every reachable file, with no time limit anywhere on that...
PT-2026-67931
Summary Open WebUI renders vega and vega-lite fenced code blocks in chat content by building a Vega view in the viewer's browser without a restricted resource loader. Any user who can place such a block where another user will see it can make that user's browser issue attacker-chosen outbound GET...
PT-2026-67838
Name of the Vulnerable Software and Affected Versions Open WebUI versions 0.9.0 through 0.10.0 Description Open WebUI fails to properly validate user-supplied URLs when checking if a destination is globally routable. The system applies ipaddress.is global to literal IPv6 addresses but does not...
PT-2026-67911
Summary Open WebUI lets a client define a model inline on a chat request instead of selecting a saved workspace model. The knowledge attached to such an inline model was used as-is, without checking that the caller can read what it points at. Any authenticated user who knows another user's file i...
PT-2026-67861
Name of the Vulnerable Software and Affected Versions Open WebUI versions 0.9.6 through 0.10.x Description The built-in knowledge search tools allow a chat participant to specify a pattern used to grep knowledge files. When patterns contain regex metacharacters, they are compiled using Python's...
PT-2026-67904
Summary DELETE /api/v1/chats/id cancelled a chat's in-flight tasks before it checked whether the caller was allowed to delete that chat. Any authenticated user who knew another user's chat id could therefore abort that user's running model response, title generation or tag generation. The deletio...
CVE-2026-70486: Improper Neutralization of Input During Web Page Generation
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.0, the terminal file-preview serveUrl iframe branch always granted allow-same-origin together with allow-scripts for HTML files served from the application origin. Any authenticated user wi...
PT-2026-67932
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...
PT-2026-67836
Name of the Vulnerable Software and Affected Versions Open WebUI versions 0.9.6 through 0.10.2 Description An issue exists where the DELETE /api/v1/chats/id endpoint cancels in-flight tasks before verifying if the caller has the necessary permissions to delete the chat. An authenticated user who...
PT-2026-67857
Name of the Vulnerable Software and Affected Versions Open WebUI versions 0.9.0 through 0.10.0 Description Automation recurrence parsing in backend/open webui/utils/automations.py anchors minutely and hourly rules to a fixed date of 2000-01-01. When calculating the next run, the system walks...
PT-2026-67839
Name of the Vulnerable Software and Affected Versions Open WebUI versions 0.9.0 through 0.10.2 Description An issue exists where the terminal file-preview serveUrl iframe branch grants allow-same-origin and allow-scripts permissions for HTML files served from the application origin. This occurs...
PT-2026-67837
Name of the Vulnerable Software and Affected Versions Open WebUI versions 0.7.0 through 0.10.0 Description An authenticated user whose features.image generation permission has been revoked can still trigger image generation by sending a feature flag in a chat-completion request. The server fails ...
CVE-2026-70483: Missing Authorization
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.6 until 0.11.0, DELETE /api/v1/chats/id cancelled a chat's in-flight tasks before checking whether the caller could delete that chat. Any authenticated user who knew another user's chat id could abort...
CVE-2026-59212
creationtimestamp| type| source ---|---|--- 2026-07-24 22:35:07+00:00| published-proof-of-concept| https://github.com/open-webui/open-webui/security/advisories/GHSA-2xwm-4h2q-ggfx...
Server-side Request Forgery (SSRF)
Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Server-side Request Forgery SSRF in the sanitizeproxypath process. An attacker can access unauthorized files or directories by submitting a specially crafted, deeply percent-encoded path parameter that bypass...
GHSA-FRVJ-C5QP-XJ4W open-webui terminal proxy path traversal guard bypass via 9x encoded traversal
AI assistance was used to help inspect the code and prepare this report. Summary The fix for GHSA-r2wg-2mcr-66rv is incomplete in v0.9.6 and current main. backend/openwebui/routers/terminals.py documents sanitizeproxypath as decoding until stable, but the implementation stops after 8 unquote...
Open WebUI: Arena task endpoints can bypass underlying model access controls
Summary An authenticated non-admin user with read access to an arena wrapper model can reach a restricted underlying model through task endpoints such as /api/v1/tasks/moa/completions. The normal chat route resolves arena models before the final chat dispatch and therefore re-checks the selected...
GHSA-M3QF-58WF-W979 Open WebUI: Arena task endpoints can bypass underlying model access controls
Summary An authenticated non-admin user with read access to an arena wrapper model can reach a restricted underlying model through task endpoints such as /api/v1/tasks/moa/completions. The normal chat route resolves arena models before the final chat dispatch and therefore re-checks the selected...
