EUVD-2026-52744

The openUrl function in @a2ui/webcore passes an agent-controlled URL directly to window.open without validating the URI scheme. A malicious agent can supply a javascript: URI as the url argument of a Button component's functionCall action. When the user clicks the rendered button, arbitrary...

CVE-2026-10032

The openUrl function in @a2ui/webcore passes an agent-controlled URL directly to window.open without validating the URI scheme. A malicious agent can supply a javascript: URI as the url argument of a Button component's functionCall action. When the user clicks the rendered button, arbitrary...

CVE-2026-69110 OpenCode Studio < 2.4.4 Unauthenticated File Read via /api/tmp and /api/music

OpenCode Studio before 2.4.4 contains a missing authentication vulnerability that allows unauthenticated remote attackers to read arbitrary files within the temp and static/music directories by directly accessing the GET /api/tmp/:tmpFile and GET /api/music/:fileName endpoints. Attackers can...

CVE-2026-69110

OpenCode Studio prior to version 2.4.4 is affected by an unauthenticated file-read vulnerability exposed via GET /api/tmp/:tmpFile and GET /api/music/:fileName, permitting reading of arbitrary files from temp and static/music directories and exposing intermediate artifacts (audio/video) and subti...

Flowise: Unauthenticated OAuth2 Refresh Enables Non-Blind SSRF and Secret Exfiltration

Summary The OAuth2 token refresh endpoint POST /api/v1/oauth2-credential/refresh/:credentialId is unauthenticated by design it is in the public whitelist and performs a server-side HTTP request to a credential-controlled URL accessTokenUrl without SSRF protections. In runtime validation, this...

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. SummaryThe 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 passe...

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

SummaryA normal authenticated user can read the content of a message in a private channel they do not belong to. GET /api/v1/channels/id/messages/messageid/thread authorizes the caller against the URL channel, but the underlying thread lookup loads the thread parent by id and returns it without...

PYSEC-2026-3600 Open WebUI: Terminal proxy forwards a spoofable, integrity-unbound user identity to the upstream (X-User-Id header and ws_terminal session_id query injection)

Summary The terminal proxy in backend/openwebui/routers/terminals.py forwards the Open WebUI user's identity to the upstream terminal server / backend coordinator as an authorization claim, with no cryptographic binding to the session that produced it. The forwarded identity is...

PYSEC-2026-3591 Open WebUI: Private channel messages can be disclosed through cross-channel thread parent_id binding

Summary A normal authenticated user can read the content of a message in a private channel they do not belong to. GET /api/v1/channels/id/messages/messageid/thread authorizes the caller against the URL channel, but the underlying thread lookup loads the thread parent by id and returns it without...

PYSEC-2026-3597 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...

PYSEC-2026-3588 Open WebUI: Model meta.knowledge read-only file access can be upgraded to file write/delete

Summary Current main and v0.9.6 still allow an authenticated user to turn read-only access to another user's file into write/delete access by attaching that file ID to an attacker-controlled workspace model. This is an incomplete-fix variant of GHSA-vjqm-6gcc-62cr. The current fix adds...

Open WebUI: Model meta.knowledge read-only file access can be upgraded to file write/delete

SummaryCurrent main and v0.9.6 still allow an authenticated user to turn read-only access to another user's file into write/delete access by attaching that file ID to an attacker-controlled workspace model.This is an incomplete-fix variant of GHSA-vjqm-6gcc-62cr. The current fix adds...

Open WebUI: Arena task endpoints can bypass underlying model access controls

SummaryAn 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...

PYSEC-2026-3601 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...

Open WebUI: Stored web worker XSS via Pyodide

Title: Same-origin Pyodide code execution allows server-side RCE via a shared chat SummaryOpen WebUI runs client-side Python Pyodide in a same-origin web worker. Through Pyodide's JavaScript API pyodide.http.pyfetch, or the js module which exposes the page's fetch / XMLHttpRequest executed Python...

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

SummaryThe getallmodels handlers in routers/openai.py and routers/ollama.py intended to cache their permission-filtered model lists per user, but the @cached decorator was misconfigured: it passed a key= lambda instead of keybuilder=. In aiocache 0.12.3 the pinned version, key= is a static cache...

PYSEC-2026-3589 Open WebUI: Cross-user model-list exposure via static cache key in get_all_models (aiocache key= vs key_builder= misuse)

Summary The getallmodels handlers in routers/openai.py and routers/ollama.py intended to cache their permission-filtered model lists per user, but the @cached decorator was misconfigured: it passed a key= lambda instead of keybuilder=. In aiocache 0.12.3 the pinned version, key= is a static cache...

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

Open WebUI upload metadata can add files to knowledge bases without write permission SummaryOpen WebUI's file upload background processing trusts the client-supplied metadata.knowledgeid value and inserts a knowledgefile association before validating that the uploading user has write access to th...

PYSEC-2026-3595 Open WebUI: Realtime endpoints accept Redis-revoked JWTs after signout/backchannel logout

Summary With Redis configured, Open WebUI supports JWT revocation: POST /api/v1/auths/signout per-token jti and OIDC back-channel logout per-user revokedat record revocations in Redis, and HTTP auth getcurrentuser rejects revoked tokens with 401. The realtime authentication surfaces do not perfor...

PYSEC-2026-3593 Open WebUI: Upload `metadata.knowledge_id` bypasses the knowledge-base write-access check (read-only users can add files to KB)

Open WebUI upload metadata can add files to knowledge bases without write permission Summary Open WebUI's file upload background processing trusts the client-supplied metadata.knowledgeid value and inserts a knowledgefile association before validating that the uploading user has write access to t...