CVE-2026-44707

CVE-2026-44707 (Chatwoot) : From 2.14.0 up to before 4.13.0, an authentication flow vulnerability allows a pre-registered, unowned email to set a password, enabling a Pre-Account Takeover. If the legitimate user later signs in via Google OAuth or another OmniAuth provider, the OAuth flow can sile...

CVE-2026-40166 authentik: Non-admin user can retrieve confidential OAuth client_secret via /api/v3/oauth2/access_tokens/

authentik is an open-source identity provider. In versions prior to 2025.12.5 and 2026.2.0-rc1 through 2026.2.2, authenticated non-admin users with at least one OAuth2 access token can retrieve the clientsecret of confidential OAuth2 providers they have previously authenticated against, exposing...

CVE-2026-8197

Concrete CMS 9.5.0 and earlier is affected by a Stored XSS via the OAuth integration name. The integration name (admin-controlled) is rendered through the t() translation helper as a sprintf-style format, with the ... wrapper built by PHP string interpolation before t() runs, allowing the integra...

CVE-2026-45675

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, he LDAP and OAuth authentication flows use a TOCTOU Time-of-Check-Time-of-Use pattern for first-user admin role assignment. The regular signup handler signuphandler in auths.py, line...

CVE-2026-8719 AI Engine 3.4.9 - Authenticated (Subscriber+) Privilege Escalation via Missing Authorization in MCP OAuth Bearer Token

The AI Engine – The Chatbot, AI Framework & MCP for WordPress plugin for WordPress is vulnerable to Privilege Escalation in version 3.4.9. This is due to missing WordPress capability enforcement in the MCP OAuth bearer-token authorization path, where any valid OAuth token causes MCP access to be...

GHSA-P9WC-4PJV-RG82 Duplicate Advisory: phpMyFAQ has SQL Injection in CurrentUser::setTokenData through unescaped OAuth token fields

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-pm8c-3qq3-72w7. This link is maintained to preserve external references. Original Description phpMyFAQ before 4.1.2 contains a sql injection vulnerability in CurrentUser::setTokenData that allows authenticated...

CVE-2026-45675 Open WebUI: LDAP and OAuth First-User Race Condition Allows Multiple Admin Accounts

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the LDAP and OAuth authentication flows use a TOCTOU Time-of-Check-Time-of-Use pattern for first-user admin role assignment. The regular signup handler signuphandler in auths.py, lin...

CVE-2026-45675

Open WebUI CVE-2026-45675 describes a TOCTOU race in first-user admin role assignment for LDAP and OAuth paths prior to version 0.9.0. The signup path was fixed to insert with a default role first and upgrade if only one user remains; LDAP and OAuth paths did not receive that fix. Attack scenario...

CVE-2026-45675 Open WebUI: LDAP and OAuth First-User Race Condition Allows Multiple Admin Accounts

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the LDAP and OAuth authentication flows use a TOCTOU Time-of-Check-Time-of-Use pattern for first-user admin role assignment. The regular signup handler signuphandler in auths.py, lin...

Race Condition

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Race Condition through a race condition in the LDAP and OAuth authentication processes. An attacker can obtain administrative privileges by sending multiple concurrent authentication requests during the initi...

GHSA-H3WW-Q6XX-W7X3 Open WebUI: LDAP and OAuth First-User Race Condition Allows Multiple Admin Accounts

Summary The LDAP and OAuth authentication flows use a TOCTOU Time-of-Check-Time-of-Use pattern for first-user admin role assignment. The regular signup handler signuphandler in auths.py, line 663 was explicitly patched to prevent this race with the comment "Insert with default role first to avoid...

n8n Has a Cross-user Authorization Bypass in Dynamic Credential OAuth Endpoints

Impact The OAuth1 and OAuth2 credential reconnect endpoints authorized access using credential:read rather than credential:update. An authenticated user with read-only access to a shared credential could initiate an OAuth reconnect flow and overwrite the stored token material for that credential...

n8n 跨站脚本漏洞

n8n is an open-source, scalable workflow automation tool developed by n8n. Versions of n8n prior to 1.123.32, 2.17.4, and 2.18.1 contained cross-site scripting vulnerabilities. These vulnerabilities stemmed from unauthorized attackers who could register malicious MCP OAuth clients containing a...

PYSEC-2026-25

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.6.11, there is no CSRF protection on the cache feature in authlib.integrations.starletteclient.OAuth. This vulnerability is fixed in 1.6.11...

PT-2026-34579

In Rocket.Chat 8.3.0, 8.2.1, 8.1.2, 8.0.3, 7.13.5, 7.12.6, 7.11.6, and 7.10.9, a NoSQL injection vulnerability can lead to account takeover of the first user with a generated token when an OAuth app is configured...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS in the GitHub OAuth callback handler when the refreshInterval query parameter is embedded verbatim into an error message and rendered unescaped into HTML. An attacker can execute arbitrary JavaScript in the...

CVE-2026-4828

Improper authentication in the OAuth login functionality in Devolutions Server 2026.1.11 and earlier allows a remote attacker with valid credentials to bypass multi-factor authentication via a crafted login request...

Tinyauth has OAuth account confusion via shared mutable state on singleton service instances

Summary All three OAuth service implementations GenericOAuthService, GithubOAuthService, GoogleOAuthService store PKCE verifiers and access tokens as mutable struct fields on singleton instances shared across all concurrent requests. When two users initiate OAuth login for the same provider...

CVE-2026-4828

Improper authentication in the OAuth login functionality of Devolutions Server (versions 2026.1.11 and earlier ) allows a remote attacker with valid credentials to bypass multi-factor authentication (MFA) . This vulnerability is triggered by sending a crafted login request . Affected versions inc...

CVE-2026-34215 Parse Server: Auth data exposed via verify password endpoint

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.63 and 9.7.0-alpha.7, the verify password endpoint returns unsanitized authentication data, including MFA TOTP secrets, recovery codes, and OAuth access tokens. An attacke...