CVE-2026-54017

Open WebUI vulnerability CVE-2026-54017 affects the terminal-server proxy in backend/open_webui/routers/terminals.py before version 0.9.6. An authenticated non-admin user can craft the request path to perform traversal and SSRF to the terminal server and potentially internal services. Two vectors...

CVE-2026-70489

Technical details about CVE-2026-70489 are not publicly available in the provided documents. Monitor for updates.

CVE-2026-44554

Open WebUI (self-hosted AI) vulnerability: the POST /api/v1/retrieval/process/web endpoint accepts a user-controlled collection_name with overwrite defaulting to True, and performs no authorization check to verify write access. When overwrite is True, save_docs_to_vector_db calls VECTOR_DB_CLIENT...

CVE-2026-45339

Open WebUI (self-hosted offline AI platform) has a vulnerability where endpoint access restrictions on API keys could be bypassed by using the x-api-key header, even when the key was restricted from sensitive endpoints like /api/v1/messages. Prior to version 0.9.0, requests with Authorization: Be...

CVE-2026-45347

CVE-2026-45347 concerns Open WebUI, a self-hosted offline AI platform. The vulnerability is a blind server-side request forgery (SSRF) via the PDF generate function, where user inputs embedded in the PDF are processed as HTML. Tests show most dangerous tags (e.g., iframe, object) are blocked, but...

CVE-2026-59215

Open WebUI prior to 0.10.0 contains a cross-channel thread context exposure bug: channel thread parent_id binding did not bind to the URL, allowing an authenticated user to reference a message from another private or DM channel and disclose thread context across channels. The issue is fixed in ve...

CVE-2026-45675

Open WebUI CVE-2026-45675 describes a TOCTOU race in first-user admin role assignment for LDAP and OAuth paths prior to version 0.9.0. The signup path was fixed to insert with a default role first and upgrade if only one user remains; LDAP and OAuth paths did not receive that fix. Attack scenario...

CVE-2026-59223

Open WebUI vulnerability CVE-2026-59223 affects the WEB_FETCH_FILTER_LIST logic prior to 0.10.0, allowing path-based blocklist bypasses (e.g., !internal.example.com in a URL path) and misalignment with hostname policy for sibling-domain matches. The issue is fixed in version 0.10.0. Impact is a p...

CVE-2026-70487

Open WebUI (versions 0.8.8–0.11.0) allowed client-supplied knowledge attachments in an inline model to bypass read access checks, enabling any authenticated user who knows another user’s file id to retrieve indexed chunks from that file via builtin knowledge tools. This caused read-only cross-use...

CVE-2024-7044

Open WebUI vulnerable to Stored XSS (CVE-2024-7044) in open-webui/open-webui v0.3.8 via chat file upload. An attacker can inject malicious content into a file that, when accessed by a victim (via URL or shared chat), executes JavaScript in the browser, enabling user data theft, session hijacking,...

CVE-2026-45314

Open WebUI vulnerability CVE-2026-45314 describes a stored XSS in the profile image handling for webhooks. Before version 0.9.3, the channel webhook create/update flow accepts data URLs (data:image/svg+xml;base64,...) for profile_image_url. The API then serves the decoded SVG as image/svg+xml wit...

CVE-2026-54011

Open WebUI vulnerability CVE-2026-54011 is a stored XSS in Mermaid Markdown Preview. Affected versions include main and 0.8.12; the Mermaid rendering uses securityLevel: 'loose' and injects SVG via innerHTML in the file preview path, enabling JavaScript execution in the app origin. The issue is c...

CVE-2026-54022

Summary (grounded in provided sources): Open WebUI prior to version 0.8.11 has a logic bug in the ydoc:document:join handler: authorization is only enforced for document IDs starting with the prefix note:. The YdocManager stores documents using a normalized key where colons are replaced with unde...

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-2026-44551

Open WebUI vulnerability CVE-2026-44551: before version 0.9.0, the LDAP authentication endpoint does not validate non-empty passwords, allowing an unauthenticated Simple Bind on many LDAP servers. The LdapForm model accepts password: str without a minimum length, so an empty string can reach the ...

CVE-2024-8017

CVE-2024-8017 is an XSS vulnerability in open-webui/open-webui versions

CVE-2025-65958

Open WebUI (self-hosted offline AI platform) is affected by a Server-Side Request Forgery (SSRF) in the /api/v1/retrieval/process/web endpoint. The vulnerability allows any authenticated user to force the server to fetch arbitrary URLs, enabling access to internal/cloud metadata endpoints (e.g., ...

CVE-2026-54007

CVE-2026-54007 describes a cross-origin postMessage bypass in Open WebUI prior to version 0.9.6. The root cause is a chat input/submit flow in the Chat.svelte window message listener that accepts non-same-origin messages (input:prompt and action:submit) and forwards them to submitPrompt(), enabli...

CVE-2026-70481

CVE-2026-70481 affects Open WebUI prior to 0.11.0. In standard channels, the update and delete message handlers allowed any user with write access to a channel to rewrite or permanently delete other users’ messages, because the standard branch checked only write permission, not message authorship...

CVE-2026-45386

Technical summary (CVE-2026-45386) Open WebUI’s pin_channel_message API endpoint exposes an IDOR vulnerability in standard channels. Prior to version 0.9.5, the endpoint checks only read permission for non-admin users, allowing read-only users to pin/unpin any message in channels where they have ...

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-2026-59226

Open WebUI vulnerability CVE-2026-59226 affects versions prior to 0.10.0 of the Open WebUI platform. The issue stems from execute_automation rehydrating automation owners without rechecking that they were still active or had features.automations, and from check_model_access only enforcing private...

CVE-2026-45667

Open WebUI vulnerability CVE-2026-45667: Before version 0.8.0, the unauthenticated GET /api/v1/memories/ef could trigger EMBEDDING_FUNCTION(...) and cause embedding generation, potentially incurring costs if paid providers are used. The issue is rooted in exposing a cost/resource–intensive operat...

CVE-2026-59222

Open WebUI is a self-hosted AI platform. CVE-2026-59222 affects versions from 0.7.0 up to, but not including, 0.10.0. The vulnerability arises when GET /api/v1/channels/{id}/members returns full UserModelResponse objects for channel members, including settings.ui.toolServers[].key and webhook con...

CVE-2026-44558

Open WebUI contains a vulnerability in the channel access grants path prior to version 0.9.0. The channel router does not call filter_allowed_access_grants on create or update, allowing a non-admin user who can create or own a group channel to submit arbitrary access grants (including public wild...

CVE-2026-44559

Summary (CVE-2026-44559) Open WebUI’s channel membership endpoint has an access control flaw on standard channels. Prior to version 0.9.0, GET /api/v1/channels/{id}/members only enforced membership checks for channel types ‘group’ and ‘dm’; standard (including private) channels did not perform ch...

CVE-2026-44568

Summary: Open WebUI before v0.9.0 has a Stored XSS in the Pending User Overlay content. The vulnerability stems from rendering the admin-configured Pending User Overlay Content via marked.parse() inside {@html} with DOMPurify applied before markdown parsing, allowing an admin to inject JavaScript...

CVE-2026-45396

Summary of technical details (CVE-2026-45396) Open WebUI v0.9.2 is vulnerable to mass assignment in the endpoint POST /api/v1/evaluations/feedback through a FeedbackForm that uses extra='allow'. The root cause is an insecure dictionary merge order in insert_new_feedback(), where the form data can...

CVE-2026-44566

Open WebUI prior to version 0.1.124 is affected by an arbitrary file upload and path traversal vulnerability. The issue occurs in the /rag/api/v1/doc upload endpoint, where the uploaded file’s name is derived from the HTTP request and is not validated or sanitized, allowing dot-segments in the fi...

CVE-2026-45399

Open WebUI CVE-2026-45399 describes a broken authorization gap in multi-user deployments: before release 0.9.0, authenticated, low-privilege users could enumerate and stop global background tasks via GET /api/tasks and POST /api/tasks/stop/{task_id}, impacting integrity and availability across us...

CVE-2026-54019

Open WebUI CVE-2026-54019 describes an ACL bypass in Milvus multitenancy mode. Before version 0.9.6, collection-level ACL checks exist but can be bypassed when an attacker supplies user-controlled, unknown collection names, which Milvus treats as a resource_id and interpolates into an unsafe expr...

CVE-2026-59227

Vulnerability summary: CVE-2026-59227 affects Open WebUI prior to 0.10.0. Affected endpoint: POST /api/v1/images/edit. The issue allowed a non-admin user with a verified account to bypass the global image-edit switch and per-user image-generation permissions, enabling server-side image editing wi...

CVE-2026-54008

Summary of CVE-2026-54008 (Open WebUI) : The vulnerable code path in backend/open_webui/utils/oauth.py::_process_picture_url validates only the initial picture_url and then fetches it with aiohttp (session.get) using default redirect-follow behavior. This enables an attacker with a valid OAuth Id...

CVE-2026-44571

CVE-2026-44571 concerns the Open WebUI platform. In standard channels, the endpoint POST /api/v1/channels/{channel_id}/messages/{message_id}/update could be invoked with only read permission if access_control is None, allowing unauthorized users to modify other users’ messages. The issue is fixed...

CVE-2026-45301

Open WebUI (self-hosted AI platform) is affected by CVE-2026-45301 due to a missing permission check in all files-related API endpoints. Before version 0.3.16, any authenticated user could list, access, and delete files uploaded by any user via the /api/v1/files endpoints, exposing confidential d...

CVE-2026-45316

Summary (Open WebUI CVE-2026-45316): A permission check bug in the POST /api/v1/notes/{id}/pin endpoint allows read-only users to toggle a note’s is_pinned state because it checks read permission instead of write. The issue occurs in Open WebUI prior to 0.9.3 and is fixed in 0.9.3. The vulnerabil...

CVE-2026-44553

Open WebUI (self-hosted offline AI) has a Socket.IO session cache vulnerability where admin role changes or user deletions are not propagated to active sessions. Prior to version 0.9.0, a user whose admin role was revoked can retain admin privileges within their existing Socket.IO session as long...

CVE-2026-45317

CVE-2026-45317 describes an application-wide CSRF vector in Open WebUI’s image handling prior to 0.9.3. An authenticated user can influence image URL rendering so that viewing a compromised image causes the user’s browser to issue GET requests to an attacker-controlled URL, potentially leaking co...

CVE-2026-45666

CVE-2026-45666 — Open WebUI IDOR in notes endpoint : The API /api/v1/notes/{note_id} allowed authenticated users to read other users’ notes by guessing UUIDs prior to version 0.8.11, enabling unauthorized data disclosure. The issue is fixed in 0.8.11; per-id endpoints now enforce ownership (admin...

CVE-2026-44562

Open WebUI vulnerability CVE-2026-44562 affects the model import flow. Before version 0.9.0, POST /api/v1/models/import allowed users with workspace.models_import to overwrite any existing model without ownership checks, merging the attacker payload into the target model when IDs match, and bypas...

CVE-2026-45365

Open WebUI suffers a parameter binding flaw: an internal bypass_filter parameter was exposed in the HTTP handlers for /openai/chat/completions and /ollama/api/chat via FastAPI query binding. This allowed any authenticated user to append ?bypass_filter=true and skip the ACL check, enabling access ...

CVE-2026-45385

Summary (grounded): Open WebUI (self-hosted offline AI) contains an IDOR vulnerability in the update_message_by_id API for channels of type group/dm. In these paths, the code only verifies that the caller is a channel member (is_user_channel_member) and does not confirm message ownership, enablin...

CVE-2026-45387

Open WebUI vulnerability CVE-2026-45387 affects Open WebUI (self-hosted offline AI) prior to version 0.9.5, where granting a group read access to a model could let other users view the model’s system prompt. Root cause: read-permission exposure of confidential prompt data. Impact: potential leaka...

CVE-2026-45395

Summary: CVE-2026-45395 (Open WebUI) is a missing authorization check on the tool update endpoint. Before 0.9.5, POST /api/v1/tools/id/{id}/update validates only a write-grant for the tool and does not enforce the workspace.tools permission, unlike the create endpoint which requires workspace.too...

CVE-2026-45671

Open WebUI vulnerability CVE-2026-45671 affects the shared-chat branch in the file authorization path. The has_access_to_file() gate unconditionally returns True for shared-chat references, ignoring the requesting user identity and the operation type. This allows any authenticated user to delete ...

CVE-2026-45318

CVE-2026-45318 is an Open WebUI stored XSS vulnerability. The root cause is rendering unsanitized HTML produced from Excel/DOCX previews (XLSX.utils.sheet_to_html) via {@html excelHtml} or fileOfficeHtml without DOMPurify. This affects Open WebUI versions prior to 0.9.3, where an attacker-uploade...

CVE-2026-44556

Open WebUI vulnerability CVE-2026-44556 affects the /api/openai/responses endpoint, where the proxy forwards requests to upstream LLMs without enforcing per-model access control. Pre-0.9.0, any authenticated user could interact with any configured model by POSTing to /responses with an arbitrary ...

CVE-2026-45315

Open WebUI (self-hosted offline AI platform) is affected by CVE-2026-45315. Before version 0.9.3, the audio transcription upload endpoint accepts a user-supplied filename extension and saves the file under CACHE_DIR/audio/transcriptions, then serves /cache/{path} via FileResponse using the on-dis...

CVE-2026-45351

Open WebUI vulnerability CVE-2026-45351: A non-admin user could trigger a request to /api/models? and receive the system prompt of available models, revealing admin-set backend prompts and compromising confidentiality. This affects Open WebUI self-hosted offline AI platform versions prior to 0.8....

CVE-2026-45665

Open WebUI contains a Stored XSS in the Banner component due to incorrect sanitization order (DOMPurify before marked.parse). The vulnerability allows a compromised administrator to store a payload in the global banner that is rendered for all users, including the Super Admin, enabling privilege ...