CVE-2026-54008

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.

• CWE-918

• https://github.com/open-webui/open-webui/security/advisories/GHSA-226f-f24g-524wExploit, Vendor Advisory, Mitigation
• https://github.com/open-webui/open-webui/security/advisories/GHSA-226f-f24g-524wExploit, Vendor Advisory, Mitigation

Published

Jun 23, 2026

Last Modified

Jun 25, 2026

Status

Analyzed

• One Click Account Takeover in GranolaHow a notification link broke out of Electron and led to a one-click account takeover.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-54002Kirby is an open-source content management system. Prior to …8.5
• CVE-2026-54003Kirby is an open-source content management system. Prior to …9.1
• CVE-2026-54004Kirby is an open-source content management system. Prior to …6.3
• CVE-2026-54005Kirby is an open-source content management system. Prior to …7.1
• CVE-2026-54006Open WebUI is a self-hosted artificial intelligence platform…4.3
• CVE-2026-54007Open WebUI is a self-hosted artificial intelligence platform…6.5
• CVE-2026-54009Open WebUI is a self-hosted artificial intelligence platform…6.5
• CVE-2026-5401AFP Spotlight protocol dissector crash in Wireshark 4.6.0 to…5.5
• CVE-2026-54010Open WebUI is a self-hosted artificial intelligence platform…8.3
• CVE-2026-54011Open WebUI is a self-hosted artificial intelligence platform…5.4
• CVE-2026-54012Open WebUI is a self-hosted artificial intelligence platform…7.1
• CVE-2026-54013Open WebUI is a self-hosted artificial intelligence platform…7.6