CVE-2026-87011 Open WebUI: Unauthenticated requests can stall the server via uncached OIDC fetches in back-channel logout

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.1, the unauthenticated POST /oauth/backchannel-logout handler in backend/openwebui/utils/oauth.py fetched the OIDC discovery document and signing keys before validating a submitted logout...

CVE-2026-87011 Open WebUI: Unauthenticated requests can stall the server via uncached OIDC fetches in back-channel logout

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.1, the unauthenticated POST /oauth/backchannel-logout handler in backend/openwebui/utils/oauth.py fetched the OIDC discovery document and signing keys before validating a submitted logout...

CVE-2026-87011

Open WebUI , a self-hosted AI platform, contains a denial-of-service vulnerability in the unauthenticated POST /oauth/backchannel-logout handler (backend/open_webui/utils/oauth.py). From version 0.9.0 through 0.11.1 , the handler fetched the OIDC discovery document and signing keys before validat...

CVE-2026-87011 Open WebUI: Unauthenticated requests can stall the server via uncached OIDC fetches in back-channel logout

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.1, the unauthenticated POST /oauth/backchannel-logout handler in backend/openwebui/utils/oauth.py fetched the OIDC discovery document and signing keys before validating a submitted logout...

CVE-2026-87506

A flaw was found in Google Chrome's WebUI. A remote attacker, after compromising the renderer process, could exploit this vulnerability by tricking a user into visiting a specially crafted HTML page. This could lead to privilege elevation, allowing the attacker to execute arbitrary code outside o...

CVE-2026-87498

A missing authorization flaw was found in the WebUI component of the Chromium browser. Upstream bugs: https://code.google.com/p/chromium/issues/detail?id=552413517...

CVE-2026-87584

An incorrect authorization flaw was found in the WebUI component of the Chromium browser. Upstream bugs: https://code.google.com/p/chromium/issues/detail?id=537466493...

DEBIAN-CVE-2026-87584

Incorrect authorization in WebUI in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass system access restrictions into a privileged page via a crafted HTML page. Chromium security severity: Medium...

CVE-2026-87584

Incorrect authorization in WebUI in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass system access restrictions into a privileged page via a crafted HTML page. Chromium security severity: Medium...

CVE-2026-87506

Privilege elevation in WebUI in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. Chromium security severity: Medium...

CVE-2026-87498

Missing authorization in WebUI in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to bypass web origin policy via a crafted HTML page. Chromium security severity: High...

CVE-2026-87498

Missing authorization in WebUI in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to bypass web origin policy via a crafted HTML page. Chromium security severity: High...

CVE-2026-87506

Privilege elevation in WebUI in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. Chromium security severity: Medium...

CVE-2026-87584

Incorrect authorization in WebUI in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass system access restrictions into a privileged page via a crafted HTML page. Chromium security severity: Medium...

CVE-2026-87584

Incorrect authorization in WebUI in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass system access restrictions into a privileged page via a crafted HTML page. Chromium security severity: Medium...

EUVD-2026-74418

Incorrect authorization in WebUI in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass system access restrictions into a privileged page via a crafted HTML page. Chromium security severity: Medium...

CVE-2026-87584

Incorrect authorization in WebUI in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass system access restrictions into a privileged page via a crafted HTML page. Chromium security severity: Medium...

CVE-2026-87584

Incorrect authorization in WebUI in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass system access restrictions into a privileged page via a crafted HTML page. Chromium security severity: Medium...

CVE-2026-87584

Google Chrome versions prior to 153.0.8010.36 are vulnerable to an incorrect authorization flaw in the WebUI . A remote attacker can exploit this by using a crafted HTML page to bypass system access restrictions and reach a privileged page . This vulnerability is also present in Microsoft Edge (C...

CVE-2026-87506

Privilege elevation in WebUI in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. Chromium security severity: Medium...