CVE-2026-44568

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the AccountPending.svelte component renders the admin-configured "Pending User Overlay Content" using marked.parse inside @html with an incorrect DOMPurify application order. An admi...

CVE-2026-44555

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, Open WebUI supports model composition via basemodelid: a user-defined model e.g., "Cheap Assistant" can reference an existing base model e.g., "gpt-4-turbo-restricted" that provides...

CVE-2026-45684 OpenTelemetry eBPF Instrumentation: Log enricher writev path can overread and overwrite user buffers

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. From version 0.7.0 to before version 0.9.0, OBI's log enricher mishandles writev buffers by reading only the first iovec entry but using the total ioviter.count as the copy length. When log...

CVE-2026-44776 Kavita: IDOR in /api/Download/*

Kavita is a cross platform reading server. Prior to 0.9.0, the download, size-check, and chapter metadata endpoints do not enforce library-level authorization. A low-privileged user who knows or guesses a chapterId, volumeId, or seriesId belonging to a library they are not assigned to can downloa...

CVE-2026-44775 Kavita: No authentication at /api/Reader/image

Kavita is a cross platform reading server. Prior to 0.9.0, the ReaderController.GetImage endpoint is decorated with AllowAnonymous, allowing completely unauthenticated access to page images from any chapter in any library. While the endpoint accepts an apiKey parameter, it is never validated. Sin...

CVE-2026-44564

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the ydoc:document:update Socket.IO event handler checks whether the sender is a member of the document's Socket.IO room line 678 but does not verify that the sender has write...

CVE-2026-44721 Open WebUI: Stored XSS via Model Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, a stored cross-site scripting XSS vulnerability that allows any authenticated user with model creation permission workspace.models to execute arbitrary JavaScript in the browser of a...

CVE-2026-44552

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the toolservers and terminalservers keys in utils/tools.py do use a prefix. When two or more Open WebUI instances share a Redis database a supported and documented deployment pattern...

EUVD-2026-30622

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the POST /api/v1/retrieval/process/web endpoint accepts a user-supplied collectionname and an overwrite query parameter default: True. It performs no authorization check on whether t...

CVE-2026-44554

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the POST /api/v1/retrieval/process/web endpoint accepts a user-supplied collectionname and an overwrite query parameter default: True. It performs no authorization check on whether t...

CVE-2026-44560

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the type: "file" non-full-context, type: "text" with collectionname, and bare collectionname/collectionnames paths in the getsourcesfromitems function perform vector store queries...

EUVD-2026-30618

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the type: "file" non-full-context, type: "text" with collectionname, and bare collectionname/collectionnames paths in the getsourcesfromitems function perform vector store queries...

CVE-2026-44561 Open WebUI: Deactivated Channel Members Retain Full Access to Group/DM Channels

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the isuserchannelmember function checks whether a ChannelMember row exists but does not check the isactive field. When a user is deactivated from a group or DM channel removed by the...

CVE-2026-44563 Open WebUI: Ollama Model Access Control Bypass via /api/generate, /api/embed, /api/embeddings, and /api/show

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the /api/generate, /api/embed, /api/embeddings, and /api/show endpoints accept any model name from the user and forward the request to the Ollama backend without checking whether the...

CVE-2026-45675 Open WebUI: LDAP and OAuth First-User Race Condition Allows Multiple Admin Accounts

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the LDAP and OAuth authentication flows use a TOCTOU Time-of-Check-Time-of-Use pattern for first-user admin role assignment. The regular signup handler signuphandler in auths.py, lin...