Missing Authorization

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Missing Authorization due to missing validation in the removefilefromknowledgebyid function. An attacker can delete arbitrary files from other users' knowledge bases by providing the file ID, even if the file...

Open WebUI's process_files_batch() endpoint missing ownership check, allows unauthorized file overwrite

Summary Any authenticated user can overwrite any file's content by ID through the POST /api/v1/retrieval/process/files/batch endpoint. The endpoint performs no ownership check, so a regular user with read access to a shared knowledge base can obtain file UUIDs via GET /api/v1/knowledge/id/files a...

EUVD-2026-16482

Open WebUI's processfilesbatch endpoint missing ownership check, allows unauthorized file overwrite...

GHSA-JJP7-G2JW-WH3J Open WebUI's process_files_batch() endpoint missing ownership check, allows unauthorized file overwrite

Summary Any authenticated user can overwrite any file's content by ID through the POST /api/v1/retrieval/process/files/batch endpoint. The endpoint performs no ownership check, so a regular user with read access to a shared knowledge base can obtain file UUIDs via GET /api/v1/knowledge/id/files a...

CVE-2026-29070

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, an access control check is missing when deleting a file from a knowledge base. The only check being done is that the user has write access to the knowledge base or is admin,...

CVE-2026-28788

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, any authenticated user can overwrite any file's content by ID through the POST /api/v1/retrieval/process/files/batch endpoint. The endpoint performs no ownership check, so a...

CVE-2026-28788: Authorization Bypass Through User-Controlled Key

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, any authenticated user can overwrite any file's content by ID through the POST /api/v1/retrieval/process/files/batch endpoint. The endpoint performs no ownership check, so a...

Open WebUI 安全漏洞

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 lack of access control checks when deleting files from the knowledge base, which could...

CVE-2026-29070: Missing Authorization

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, an access control check is missing when deleting a file from a knowledge base. The only check being done is that the user has write access to the knowledge base or is admin,...

CVE-2026-29070

Open WebUI (self-hosted offline AI platform) prior to version 0.8.6 lacks proper access control when deleting files from a knowledge base. The only check is that the user has write access to the knowledge base or is an admin; no verification that the target file belongs to that knowledge base. As...

CVE-2026-29070 Open WebUI has unauthorized deletion of knowledge files

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, an access control check is missing when deleting a file from a knowledge base. The only check being done is that the user has write access to the knowledge base or is admin,...

CVE-2026-29070

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, an access control check is missing when deleting a file from a knowledge base. The only check being done is that the user has write access to the knowledge base or is admin,...

CVE-2026-29070 Open WebUI has unauthorized deletion of knowledge files

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, an access control check is missing when deleting a file from a knowledge base. The only check being done is that the user has write access to the knowledge base or is admin,...

CVE-2026-29070 Open WebUI has unauthorized deletion of knowledge files

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, an access control check is missing when deleting a file from a knowledge base. The only check being done is that the user has write access to the knowledge base or is admin,...

CVE-2026-28788

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, any authenticated user can overwrite any file's content by ID through the POST /api/v1/retrieval/process/files/batch endpoint. The endpoint performs no ownership check, so a...

CVE-2026-28788 Open WebUI's process_files_batch() endpoint missing ownership check, allows unauthorized file overwrite

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, any authenticated user can overwrite any file's content by ID through the POST /api/v1/retrieval/process/files/batch endpoint. The endpoint performs no ownership check, so a...

CVE-2026-28788 Open WebUI's process_files_batch() endpoint missing ownership check, allows unauthorized file overwrite

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, any authenticated user can overwrite any file's content by ID through the POST /api/v1/retrieval/process/files/batch endpoint. The endpoint performs no ownership check, so a...

CVE-2025-36187

IBM Knowledge Catalog Standard Cartridge 5.0.0, 5.0.1, 5.0.2, 5.0.3, 5.1, 5.1.1, 5,1.2, 5.1.3, 5.2.0, 5.2.1 stores potentially sensitive information in log files that could be read by a local privileged user...

CVE-2026-1393

The Add Google Social Profiles to Knowledge Graph Box plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0. This is due to missing nonce validation on the settings update functionality. This makes it possible for unauthenticated attackers to...

EUVD-2025-209040

IBM Knowledge Catalog Standard Cartridge 5.0.0, 5.0.1, 5.0.2, 5.0.3, 5.1, 5.1.1, 5,1.2, 5.1.3, 5.2.0, 5.2.1 stores potentially sensitive information in log files that could be read by a local privileged user...