Alertas de Seguridad de la Información

O Alto vulnerabilidad

15/07/2026

[CVE-2026-56400] open-webui before 0.3.14 contains a cross-origin resource sharing misconfiguration allowing arbitrar…

open-webui before 0.3.14 contains a cross-origin resource sharing misconfiguration allowing arbitrary origins with allow_origins=* and authenticated requests to the /api/v1/functions endpoint. Attackers can execute arbitrary code on the openwebui instance by crafting malicious cross-site requests from attacker-controlled websites when an admin user visits them.

nvdaltovulnerabilidad CVSS 8.3 NVD

O Alto vulnerabilidad

15/07/2026

[CVE-2026-56398] Open WebUI before 0.9.5 contains a stored cross-site scripting vulnerability in the OAuth authentica…

Open WebUI before 0.9.5 contains a stored cross-site scripting vulnerability in the OAuth authentication flow where the picture claim URL MIME type is inferred from file extension rather than Content-Type header, allowing SVG files to bypass the profile image validator and be stored as data URIs. Authenticated users who visit the profile image endpoint receive attacker-controlled SVG content with …

nvdaltovulnerabilidad CVSS 7.3 NVD

O Alto vulnerabilidad

09/07/2026

[CVE-2026-59221] Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.6 bef…

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.6 before 0.10.0, _sanitize_proxy_path in backend/open_webui/routers/terminals.py decoded proxy paths only eight times, allowing a nine-times percent-encoded ../ traversal value to pass normalization checks and be decoded by the upstream terminal server. This issue is fixed in version 0.10.0.

nvdaltovulnerabilidad CVSS 7.7 NVD

O Alto vulnerabilidad

09/07/2026

[CVE-2026-59224] Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.…

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, backend/open_webui/routers/terminals.py built the ws_terminal upstream URL from an unencoded session_id and appended user_id as a query parameter, allowing query injection to make the terminal backend resolve another user identity; the HTTP proxy path also forwarded X-User-Id as an integrity-unbo…

nvdaltovulnerabilidad CVSS 8.0 NVD

O Alto vulnerabilidad

09/07/2026

[CVE-2026-59214] Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.…

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, Open WebUI runs client-side Python with Pyodide in a same-origin web worker, allowing stored chat payloads that use pyodide.http.pyfetch or the js module fetch and XMLHttpRequest APIs to issue authenticated same-origin requests when a victim clicks Run, which can reach admin-only endpoints and ex…

nvdaltovulnerabilidad CVSS 7.3 NVD

O Alto vulnerabilidad

09/07/2026

[CVE-2026-59216] Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.…

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, get_event_call delivered execute:python and execute:tool Socket.IO events to a client-supplied session_id after checking only that the session was connected, allowing authenticated users who learned another socket ID through ydoc:document:join to run code interpreter Python or tools in that user …

nvdaltovulnerabilidad CVSS 7.7 NVD

O Alto vulnerabilidad

09/07/2026

[CVE-2026-59219] Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 bef…

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 before 0.10.0 with Redis configured, Socket.IO connect, user-join, join-channels, join-note, and the terminal websocket first-message authentication used decode_token without the Redis-backed is_valid_token revocation check, allowing revoked JWTs to continue authenticating realtime connections. This is…

nvdaltovulnerabilidad CVSS 7.1 NVD

O Alto vulnerabilidad

23/06/2026

[CVE-2026-54018] Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. P…

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, the SafePlaywrightURLLoader implements a validate_url function to prevent SSRF attacks by checking the IP address of the user-provided URL. However, this validation is performed only on the initial URL. Since Playwright automatically follows HTTP redirects (301/302) by default, an att…

nvdaltovulnerabilidad CVSS 7.7 NVD

O Alto vulnerabilidad

23/06/2026

[CVE-2026-54010] Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. P…

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 file_id values to their own chat message without checking whether they own or can read those files. If the attacker then shares that chat and grants themselves read access, has_access_to_file() treats the victim file as accessible…

nvdaltovulnerabilidad CVSS 8.3 NVD

O Alto vulnerabilidad

23/06/2026

[CVE-2026-54011] Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. P…

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 securityLevel: 'loose', attacker-controlled Mermaid content can be rendered unsafely in this flow. A working pa…

nvdaltovulnerabilidad CVSS 8.7 NVD

O Alto vulnerabilidad

23/06/2026

[CVE-2026-54012] Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. P…

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 referenced files. Open WebUI then treats meta.knowledge entries of type file as an authorization source in …

nvdaltovulnerabilidad CVSS 7.1 NVD

O Alto vulnerabilidad

23/06/2026

[CVE-2026-54013] Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. P…

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 validate_profile_image_url field validator, and the model image serving endpoint has no MIME allowlist or nosniff header. A…

nvdaltovulnerabilidad CVSS 7.6 NVD

O Alto vulnerabilidad

23/06/2026

[CVE-2026-54008] Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. P…

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, backend/open_webui/utils/oauth.py::_process_picture_url calls validate_url(picture_url) on the initial URL only, then invokes aiohttp.ClientSession.get(picture_url, ...) without allow_redirects=False. aiohttp's default is allow_redirects=True, max_redirects=10; the function does not p…

nvdaltovulnerabilidad CVSS 8.5 NVD

O Alto vulnerabilidad

18/06/2026

[CVE-2026-54017] Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. P…

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, the terminal-server reverse proxy in `backend/open_webui/routers/terminals.py` does not fully confine the user-controlled `path` segment before forwarding it to an admin-configured terminal server. An authenticated user who has been granted access to a terminal server can craft `path`…

nvdaltovulnerabilidad CVSS 7.7 NVD