CVE-2026-54008

Description

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 pass the project's AIOHTTP_CLIENT_ALLOW_REDIRECTS env constant either. An attacker with a valid OAuth IdP identity can therefore submit a public URL that 302-redirects to an internal address and read the internal response body via the attacker's own profile_image_url field. This vulnerability is fixed in 0.9.6.

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Produits concernés

• open-webui
• Openwebui open webui

Scores CVSS

Faiblesses (CWE)

• CWE-918

Références

• https://github.com/open-webui/open-webui/security/advisories/GHSA-226f-f24g-524w ExploitVendor AdvisoryMitigation
• https://github.com/open-webui/open-webui/security/advisories/GHSA-226f-f24g-524w ExploitVendor AdvisoryMitigation

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories