Open WebUI security vulnerabilities

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted WebUI under open source. Versions of Open WebUI prior to 0.9.3 contained a security vulnerability. This vulnerability stemmed from the channel webhook creation/update process accepting arbitrary profileimageurl values,...

Open WebUI Cross-Site Script Vulnerability

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted WebUI that is open source. Versions of Open WebUI prior to 0.9.3 had a cross-site scripting vulnerability. This vulnerability stemmed from the XLSX.utils.sheettohtml function, which was rendered using @html excelHtml without...

Open WebUI Information Leakage Vulnerability

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted WebUI under open source. Versions of Open WebUI prior to 0.9.5 had a vulnerability related to information leakage. This vulnerability occurred when group members were granted read access to model settings, allowing them to...

CVE-2026-44562: Missing Authorization

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the POST /api/v1/models/import endpoint allows users with the workspace.modelsimport permission to overwrite any existing model in the database, regardless of ownership. When an...

CVE-2026-45672: Incorrect Authorization

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.12, the /api/v1/utils/code/execute endpoint executes arbitrary Python code via Jupyter for any verified user, even when the admin has set ENABLECODEEXECUTION=false. The feature gate is...

CVE-2026-44550: Missing Authorization

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, FolderForm uses modelconfig = ConfigDictextra='allow', which permits arbitrary fields to pass through Pydantic validation and be included in modeldumpexcludeunset=True. In...

CVE-2026-44560: Missing Authorization

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-2026-45315: Improper Neutralization of Input During Web Page Generation

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.3, the audio transcription upload endpoint takes the file extension from the user-supplied filename and saves the file under CACHEDIR/audio/transcriptions/.. The /cache/path route serve...

Open WebUI Cross-Site Script Vulnerability

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted WebUI that is open source. Versions of Open WebUI prior to 0.8.0 had a cross-site scripting vulnerability. This vulnerability stemmed from the insecure preview of Excel file attachments. The specially crafted XLSX file paylo...

Open WebUI security vulnerabilities

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted WebUI under open source. Versions of Open WebUI prior to 0.8.6 contained security vulnerabilities. These vulnerabilities stemmed from the chat completion API, where tool IDs and server parameters were provided by users witho...

Open WebUI Cross-Site Script Vulnerability

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted WebUI under open source. Versions of Open WebUI prior to 0.8.0 had a cross-site scripting vulnerability. This vulnerability stemmed from improper cleanup order in the Banner component, leading to storage-based cross-site...

Open WebUI security vulnerabilities

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted WebUI under open source. Versions of Open WebUI prior to 0.9.0 contained security vulnerabilities. These vulnerabilities stemmed from the GET /api/v1/channels/id/members endpoint, which only checked group and DM channel type...

Open WebUI security vulnerabilities

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted WebUI under the open source Open WebUI project. Versions of Open WebUI prior to 0.9.0 contained security vulnerabilities. These vulnerabilities stemmed from the isuserchannelmember function, which checked whether the...

Open WebUI Cross-Site Script Vulnerability

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted WebUI that is open source. Versions of Open WebUI prior to 0.9.0 had a cross-site scripting vulnerability. This vulnerability stemmed from the AccountPending.svelte component using marked.parse to render...

Open WebUI Cross-Site Script Vulnerability

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted WebUI under open source. Versions of Open WebUI prior to 0.9.0 contained a cross-site scripting vulnerability. This vulnerability stemmed from stored-xss attacks, which could allow users with model creation permissions to...

Open WebUI Access Control Vulnerability

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted WebUI under open source. Versions of Open WebUI prior to 0.9.5 contained a security vulnerability related to access control. This vulnerability stemmed from the lack of authentication for the GET /api/v1/retrieval endpoint,...

Open WebUI code-related vulnerabilities

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted WebUI under open source. Versions of Open WebUI prior to 0.9.5 had code vulnerabilities. These vulnerabilities stemmed from the validateurl function, which only verified the initial URL without verifying the redirection...

CVE-2026-45314: Improper Neutralization of Alternate XSS Syntax

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.3, the channel webhook create/update flow accepts arbitrary profileimageurl values, including data:image/svg+xml;base64,... payloads. The profile image endpoint then decodes and serves...

CVE-2026-45397: Missing Authentication for Critical Function

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, GET /api/v1/retrieval/ returns live RAG pipeline configuration to any unauthenticated HTTP client. No Authorization header, cookie, or API key is required. Every adjacent endpoint on...

Open WebUI security vulnerabilities

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted WebUI under open source. Versions of Open WebUI prior to 0.9.0 contained security vulnerabilities. These vulnerabilities stemmed from the getsourcesfromitems function, where the execution vectors for paths containing a bare...