EUVD-2026-30611

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, validateurl in backend/openwebui/retrieval/web/utils.py calls validators.ipv6ip, private=True, but the validators library does NOT implement the private keyword for IPv6 — the call...

CVE-2026-45339

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, Open WebUI allows admins to restrict which API endpoints an API key can access. When an API key is restricted from /api/v1/messages, requests using the Authorization: Bearer sk-...

EUVD-2026-30612

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, Open WebUI allows admins to restrict which API endpoints an API key can access. When an API key is restricted from /api/v1/messages, requests using the Authorization: Bearer sk-...

EUVD-2026-30608

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, any authenticated user with low privileges can enumerate active background tasks across the system and stop tasks belonging to other users via the GET /api/tasks and POST...

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...

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...

EUVD-2026-17977

Open WebUI has Broken Access Control in Tool Valves...

CVE-2026-34222

Affected product: Open WebUI, a self-hosted offline AI platform. Issue: broken access control in tool values prior to version 0.8.11. Impact: potential exposure due to access control bypass; CVSS 3.1 base score 7.7 (HIGH) with Network attack vector, low privileges required, no user interaction, c...

CVE-2026-29071

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, any authenticated user can read other users' private memories via /api/v1/retrieval/query/collection. Version 0.8.6 patches the issue...

EUVD-2026-16484

Open WebUI has unauthorized deletion of knowledge files...

EUVD-2026-16482

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

CVE-2026-29071

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, any authenticated user can read other users' private memories via /api/v1/retrieval/query/collection. Version 0.8.6 patches the issue...

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-2026-26193

Open WebUI (self-hosted, offline) is affected prior to v0.6.44. The vulnerability arises from allowing manual modification of chat history to set the embeds property on a response message, which is loaded into an iframe with an aggressive sandbox (allow-scripts and allow-same-origin) that bypasse...

PT-2026-20918

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.6.44 Description Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Manually modifying chat history allows setting the embeds property on a response message. The...

PT-2026-20917

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.7.0 Description Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Modifying chat history before version 0.7.0 allows manipulation of the html property within...

CVE-2025-46719

Open WebUI vulnerability CVE-2025-46719 affects versions prior to 0.6.6. A flaw in rendering certain HTML tags in chat messages allows stored cross-site scripting (XSS) in chat transcripts, which are accessible by other users on the same server or via Open WebUI community sharing. In the user’s b...