EUVD-2026-30606

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, any authenticated user can permanently delete files owned by other users via DELETE /api/v1/files/id when the target file is referenced in any shared chat. The hasaccesstofile...

CVE-2026-45671 Open WebUI: shared-chat branch ignores access_type, allowing unauthorized file deletion

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, any authenticated user can permanently delete files owned by other users via DELETE /api/v1/files/id when the target file is referenced in any shared chat. The hasaccesstofile...

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 ...

EUVD-2026-30607

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, he 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, line...

CVE-2026-45675

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...

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...

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-2026-45675 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...

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...

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 0.9.5 contained security vulnerabilities. These vulnerabilities stemmed from multiple endpoints accepting file IDs provided by users without verifying ownership,...

Open WebUI 安全漏洞

Open WebUI is an open-source, scalable, feature-rich, and user-friendly self-hosted WebUI. Versions of Open WebUI prior to 0.9.0 contained security vulnerabilities. These vulnerabilities stemmed from the POST /api/v1/models/import endpoint, which allowed users with the workspace.models.import...

Open WebUI 路径遍历漏洞

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted WebUI under open source. Versions of Open WebUI prior to 0.6.10 had a path traversal vulnerability. This vulnerability arises when uploading audio files, where the file name originates from the original HTTP upload request a...

Open WebUI 授权问题漏洞

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted WebUI based on the Open WebUI open source project. Versions of Open WebUI prior to 0.9.0 had an authorization vulnerability. This vulnerability stemmed from the LDAP authentication endpoint failing to verify that the submitt...

Open WebUI 跨站脚本漏洞

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 audio transcription upload endpoint, which extracted the file extension from the...

Open WebUI 访问控制错误漏洞

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted WebUI under open source. Versions of Open WebUI prior to 0.9.5 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 授权问题漏洞

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted WebUI under open source. Versions of Open WebUI prior to 0.5.7 had an authorization issue vulnerability. This vulnerability stems from the ability for users to change access permissions during editing, potentially leading to...

Open WebUI 跨站脚本漏洞

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

Open WebUI 安全漏洞

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 contained security vulnerabilities. These vulnerabilities stemmed from the model combination feature: the access control pipeline only verified users’ access...

Open WebUI 代码问题漏洞

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted WebUI that is open source. Versions of Open WebUI prior to 0.9.5 had code issues and vulnerabilities, which were caused by parsing differences between the urlparse and requests libraries, leading to SSRF bypasses...

Open WebUI 安全漏洞

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 contained security vulnerabilities. These vulnerabilities stemmed from FolderForm using modelconfig = ConfigDictextra=allow, which allowed arbitrary fields to ...