Open WebUI: Users denied by the OAuth domain allowlist or role policy can still sign in via token exchange

Summary Open WebUI's OAuth token exchange endpoint issues a session for a provider access token without applying the email domain allowlist that the normal OAuth login callback enforces. An account whose email domain the login callback would refuse could still obtain a working session through thi...

CVE-2026-79662 Ech0 before 4.7.3 OAuth Redirect URI Validation Bypass

Ech0 through 4.5.6 contains an OAuth redirect URI validation vulnerability in parseAndValidateClientRedirect internal/service/auth/auth.go that compares only the scheme and host of the client-supplied redirecturi against the admin-configured allowlist, ignoring path, query, and fragment component...

Apache Airflow 安全漏洞

Apache Airflow is an open-source platform developed by the Apache Foundation in the United States. It allows for the creation, management, and monitoring of workflows. Versions of Apache Airflow prior to 3.2.2 contained security vulnerabilities. These vulnerabilities stemmed from the XCom PATCH...

GHSA-QQCJ-RGHW-829X Unity Catalog has a JWT Issuer Validation Bypass tht Allows Complete User Impersonation

Context: A critical authentication bypass vulnerability exists in the Unity Catalog token exchange endpoint /api/1.0/unity-control/auth/tokens. The endpoint extracts the issuer iss claim from incoming JWTs and uses it to dynamically fetch the JWKS endpoint for signature validation without...

Improper Authentication Validation

github.com/mattermost/mattermost-server is vulnerable to improper authentication validation. The vulnerability is due to failure to verify that the token used during the code exchange originates from the same authentication flow, which allows an authenticated attacker to perform account takeover ...

CVE-2026-27478

CVE-2026-27478 relates to Unity Catalog (0.4.0 and earlier). The vulnerability is a critical authentication bypass in the token exchange endpoint at /api/1.0/unity-control/auth/tokens, where the issuer (iss) claim from incoming JWTs is used to dynamically fetch the JWKS endpoint for signature val...

CVE-2026-27478: Authentication Bypass by Spoofing

Unity Catalog is an open, multi-modal Catalog for data and AI. In 0.4.0 and earlier, a critical authentication bypass vulnerability exists in the Unity Catalog token exchange endpoint /api/1.0/unity-control/auth/tokens. The endpoint extracts the issuer iss claim from incoming JWTs and uses it to...

Mattermost Authentication Bypass

The vulnerability of the Mattermost instant messaging application is related to the improper implementation of the authentication algorithm when processing the /users/login/sso/code-exchange endpoint. Exploiting this vulnerability allows a malicious actor to bypass security restrictions and gain...

Incorrect Implementation of Authentication Algorithm

Overview Affected versions of this package are vulnerable to Incorrect Implementation of Authentication Algorithm. An attacker can gain unauthorized access to another user's account by leveraging a specially crafted email address when switching authentication methods and sending a request to the...

Incorrect Implementation of Authentication Algorithm

Overview Affected versions of this package are vulnerable to Incorrect Implementation of Authentication Algorithm. An attacker can gain unauthorized access to another user's account by leveraging a specially crafted email address when switching authentication methods and sending a request to the...