CVE-2026-59570: Improper Input Validation

On affected versions of Zscaler client connector, a pre-installed peer app can tear down the Zscaler tunnel, force user logout, and toggle packet capture...

PT-2026-91248

Name of the Vulnerable Software and Affected Versions Zscaler client connector affected versions not specified Description A pre-installed peer app can tear down the Zscaler tunnel, force user logout, and toggle packet capture. Recommendations At the moment, there is no information about a newer...

EUVD-2026-75170

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

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

Summary The OIDC back-channel logout endpoint is unauthenticated by design, because the identity provider calls it without a browser session. Before checking whether the submitted logout token was genuine, the handler fetched the provider's discovery document and its signing keys over the network...

Allocation of Resources Without Limits or Throttling

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling through the POST /oauth/backchannel-logout process in the OIDC back-channel logout handler when unauthenticated requests trigger repeated network fetches f...

GHSA-3G9Q-V48F-HH9W Open WebUI: Unauthenticated requests can stall the server via uncached OIDC fetches in back-channel logout

Summary The OIDC back-channel logout endpoint is unauthenticated by design, because the identity provider calls it without a browser session. Before checking whether the submitted logout token was genuine, the handler fetched the provider's discovery document and its signing keys over the network...

The vulnerability of the /oauth/backchannel-logout web interface based on artificial intelligence in Open WebUI allows a perpetrator to trigger a service failure.

The vulnerability of the /oauth/backchannel-logout web interface component in the Open WebUI system is related to asymmetric resource consumption. Exploiting this vulnerability could allow a malicious actor to cause service failure remotely...

CVE-2026-87011

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-2026-87011 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...

DRUPAL-CONTRIB-2026-135

This module enables you to turn a Drupal install into the Central Authentication System CAS Server. It makes your database the primary location for other systems to use for authentication in a SSO environment. The module doesn't sufficiently check the service URL used to redirect the user during...

PT-2026-89237

This module enables you to turn a Drupal install into the Central Authentication System CAS Server. It makes your database the primary location for other systems to use for authentication in a SSO environment. The module doesn't sufficiently check the service URL used to redirect the user during...

CVE-2026-87011: Asymmetric Resource Consumption (Amplification)

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-2026-86215

A vulnerability was identified in Mstfakts College-Management-System. The affected element is an unknown function of the file Front-end/server.php of the component Logout Handler. Such manipulation of the argument logout leads to session expiration. It is possible to launch the attack remotely. T...

EUVD-2026-72133

A vulnerability was identified in Mstfakts College-Management-System. The affected element is an unknown function of the file Front-end/server.php of the component Logout Handler. Such manipulation of the argument logout leads to session expiration. It is possible to launch the attack remotely. T...

CVE-2026-86215 Mstfakts College-Management-System Logout server.php session expiration

A vulnerability was identified in Mstfakts College-Management-System. The affected element is an unknown function of the file Front-end/server.php of the component Logout Handler. Such manipulation of the argument logout leads to session expiration. It is possible to launch the attack remotely. T...

CVE-2026-86215 Mstfakts College-Management-System Logout server.php session expiration

A vulnerability was identified in Mstfakts College-Management-System. The affected element is an unknown function of the file Front-end/server.php of the component Logout Handler. Such manipulation of the argument logout leads to session expiration. It is possible to launch the attack remotely. T...

CVE-2026-86215

A session expiration vulnerability exists in the Logout Handler component (file Front-end/server.php) of Mstfakts College-Management-System , a self-hosted college management application on GitHub. Manipulation of the log_out argument allows a low-privileged remote attacker to force session expir...