EUVD-2026-26814

A security flaw has been discovered in YunaiV yudao-cloud up to 2026.01. This impacts the function getAccessToken of the file yudao-module-system-biz/src/main/java/io/github/ruoyi/common/oauth2/service/impl/OAuth2TokenServiceImpl.java. Performing a manipulation results in improper authentication...

Improper Authentication

Overview Affected versions of this package are vulnerable to Improper Authentication in the mapUser process. An attacker can gain unauthorized access to other users' accounts and access sensitive information by exploiting the improper assignment of a constant user ID to all authenticated accounts...

PT-2026-36824

Name of the Vulnerable Software and Affected Versions auth versions 1.18.0 through 1.25.1 auth versions 2.0.0 through 2.1.1 Description The Patreon OAuth provider maps every authenticated Patreon account to the same local user.ID instead of deriving a unique ID from the account returned by Patreo...

Cross-site Scripting (XSS)

Overview n8n-editor-ui is a Workflow Editor UI for n8n Affected versions of this package are vulnerable to Cross-site Scripting XSS via the clientname parameter in the MCP OAuth client registration process. An attacker can execute arbitrary JavaScript in a victim's authenticated browser session b...

Allocation of Resources Without Limits or Throttling

Overview n8n is a n8n Workflow Automation Tool Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the MCP OAuth client registration process. An attacker can exhaust server memory resources and render the instance unavailable by sending lar...

n8n Vulnerable to Unauthenticated Denial of Service via MCP Client Registration

Impact The MCP OAuth client registration endpoint accepted unauthenticated requests and stored client data without adequate resource controls. An unauthenticated remote attacker could exhaust server memory resources by sending large registration payloads, rendering the n8n instance unavailable. T...

SUSE CVE-2026-41425

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...

[SECURITY] Fedora 44 Update: python-msal-1.36.0-1.fc44

The Microsoft Authentication Library for Python enables applications to integrate with the Microsoft identity platform. It allows you to sign in users or apps with Microsoft identities Azure AD, Microsoft Accounts and Azure AD B2C accounts and obtain tokens to call Microsoft APIs such as Microsof...

Linux Distros Unpatched Vulnerability : CVE-2026-41425

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

CVE-2026-41425

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...

CVE-2026-41427

Better Auth is an authentication and authorization library for TypeScript. Prior to 1.6.5, the clientPrivileges option documents a create action, but the OAuth client creation endpoints did not invoke the hook before persisting new clients. Deployments that configured clientPrivileges to restrict...

CVE-2026-41427 Better Auth OAuth 2.1 Provider: Unprivileged users can register OAuth clients

Better Auth is an authentication and authorization library for TypeScript. Prior to 1.6.5, the clientPrivileges option documents a create action, but the OAuth client creation endpoints did not invoke the hook before persisting new clients. Deployments that configured clientPrivileges to restrict...

CVE-2026-41425

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...

CVE-2026-41425

Authlib (Python) Authlib.integrations.starlette_client.OAuth cache feature is vulnerable prior to version 1.6.11 due to missing CSRF protection. The vulnerability affects the cache path of the OAuth implementation, enabling cross-site request forgery under the described conditions. The issue is f...

CVE-2026-41425 Authlib: Cross-site request forging when using cache

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-2026-35070

Name of the Vulnerable Software and Affected Versions Better Auth versions prior to 1.6.5 Description The OAuth client creation endpoints failed to invoke the hook associated with the clientPrivileges option before persisting new clients. Consequently, deployments intended to restrict client...

EUVD-2026-25290

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, Flowise contains an authentication bypass vulnerability that allows an unauthenticated attacker to obtain OAuth 2.0 access tokens associated with a public chatflow. By accessing a public...

CVE-2026-41273 Flowise: Unauthenticated OAuth 2.0 Access Token Disclosure via Public Chatflow

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, Flowise contains an authentication bypass vulnerability that allows an unauthenticated attacker to obtain OAuth 2.0 access tokens associated with a public chatflow. By accessing a public...

CVE-2026-41273

Flowise (a drag‑and‑drop interface for building LLM flows) is affected prior to version 3.1.0 by an authentication bypass that lets an unauthenticated attacker obtain OAuth 2.0 access tokens tied to a public chatflow. An attacker can access a public chatflow configuration endpoint to retrieve int...

CVE-2026-41213 @node-oauth/oauth2-server: PKCE code_verifier ABNF not enforced in token exchange allows brute-force redemption of intercepted authorization codes

@node-oauth/oauth2-server is a module for implementing an OAuth2 server in Node.js. The token exchange path accepts RFC7636-invalid codeverifier values including one-character strings for S256 PKCE flows. Because short/weak verifiers are accepted and failed verifier attempts do not consume the...