CVE-2026-54009

CVE-2026-54009 affects Open WebUI prior to 0.9.6. The vulnerability arises in the image_url handling path: convert_url_images_to_base64 calls get_image_base64_from_url without a user context, and get_image_base64_from_url uses Files.get_file_by_id (no ownership check) to retrieve a file by ID. Th...

CVE-2026-54010

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI lets an authenticated user attach arbitrary fileid values to their own chat message without checking whether they own or can read those files. If the attacker then shares...

CVE-2026-54010 Open WebUI: Forged chat-file link allows cross-user file read and deletion

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI lets an authenticated user attach arbitrary fileid values to their own chat message without checking whether they own or can read those files. If the attacker then shares...

CVE-2026-54010 Open WebUI: Forged chat-file link allows cross-user file read and deletion

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI lets an authenticated user attach arbitrary fileid values to their own chat message without checking whether they own or can read those files. If the attacker then shares...

CVE-2026-54010

CVE-2026-54010 affects Open WebUI prior to version 0.9.6. An authenticated user could attach arbitrary file_id values to their own chat messages without ownership/read checks, and then leverage a forged chat-file link to access or delete the victim’s file via shared-chat authorization. The root c...

CVE-2026-54010 Open WebUI: Forged chat-file link allows cross-user file read and deletion

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI lets an authenticated user attach arbitrary fileid values to their own chat message without checking whether they own or can read those files. If the attacker then shares...

CVE-2026-54011

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6,Open WebUI renders Mermaid blocks from Markdown files in the file preview panel and inserts the generated SVG into the DOM using innerHTML. Because Mermaid is configured with...

CVE-2026-54011

Open WebUI vulnerability CVE-2026-54011 is a stored XSS in Mermaid Markdown Preview. Affected versions include main and 0.8.12; the Mermaid rendering uses securityLevel: 'loose' and injects SVG via innerHTML in the file preview path, enabling JavaScript execution in the app origin. The issue is c...

EUVD-2026-38531

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6,Open WebUI renders Mermaid blocks from Markdown files in the file preview panel and inserts the generated SVG into the DOM using innerHTML. Because Mermaid is configured with...

CVE-2026-54011 Open WebUI: Stored XSS in Mermaid Markdown Preview

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6,Open WebUI renders Mermaid blocks from Markdown files in the file preview panel and inserts the generated SVG into the DOM using innerHTML. Because Mermaid is configured with...

CVE-2026-54011 Open WebUI: Stored XSS in Mermaid Markdown Preview

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6,Open WebUI renders Mermaid blocks from Markdown files in the file preview panel and inserts the generated SVG into the DOM using innerHTML. Because Mermaid is configured with...

CVE-2026-54011 Open WebUI: Stored XSS in Mermaid Markdown Preview

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6,Open WebUI renders Mermaid blocks from Markdown files in the file preview panel and inserts the generated SVG into the DOM using innerHTML. Because Mermaid is configured with...

CVE-2026-54012 Open WebUI: Forged model meta.knowledge allows cross-user file read and deletion

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI lets a user who can create, update, or import workspace models store arbitrary meta.knowledge entries on their model without checking whether they own or can read the...

CVE-2026-54012

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI lets a user who can create, update, or import workspace models store arbitrary meta.knowledge entries on their model without checking whether they own or can read the...

CVE-2026-54012

CVE-2026-54012 pertains to Open WebUI. Before version 0.9.6, a user with model-creation/update/import rights could attach forged meta.knowledge entries of type file to their model. The system then trusts these entries as authorization sources, enabling a cross-user read and deletion of private fi...

CVE-2026-54012 Open WebUI: Forged model meta.knowledge allows cross-user file read and deletion

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI lets a user who can create, update, or import workspace models store arbitrary meta.knowledge entries on their model without checking whether they own or can read the...

CVE-2026-54013 Open WebUI: Stored XSS to Account Takeover via Model Profile Images in Open WebUI

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI patched SVG XSS in user profile images and webhook profile images but forgot to apply the same fix to model profile images. The ModelMeta class has no...

EUVD-2026-38529

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI patched SVG XSS in user profile images and webhook profile images but forgot to apply the same fix to model profile images. The ModelMeta class has no...

CVE-2026-54013

CVE-2026-54013 describes a stored XSS in Open WebUI where the model profile image URL could be a data:image/svg+xml;base64 payload. The root cause is missing input validation on ModelMeta.profile_image_url and missing output protections in the model image endpoint (no MIME allowlist, no nosniff, ...

CVE-2026-54013 Open WebUI: Stored XSS to Account Takeover via Model Profile Images in Open WebUI

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI patched SVG XSS in user profile images and webhook profile images but forgot to apply the same fix to model profile images. The ModelMeta class has no...