Race Condition

Overview Affected versions of this package are vulnerable to Race Condition in the GenericOAuthService, GithubOAuthService, GoogleOAuthService Auth services. An attacker can gain unauthorized access to another user's session and associated resources by timing concurrent OAuth login requests to...

Deserialization of Untrusted Data

Overview devcode-it/openstamanager is a management software for technical assistance and electronic invoicing Affected versions of this package are vulnerable to Deserialization of Untrusted Data in the unserialize process of the accesstoken field in the OAuth2 configuration flow, where...

GHSA-WHV5-4Q2F-Q68G OpenSTAManager Affected by Remote Code Execution via Insecure Deserialization in OAuth2

Description The oauth2.php file in OpenSTAManager is an unauthenticated endpoint $skippermissions = true. It loads a record from the zzoauth2 table using the attacker-controlled GET parameter state, and during the OAuth2 configuration flow calls unserialize on the accesstoken field without any...

EUVD-2026-17921

Improper authentication in the external OAuth authentication flow in Devolutions Server 2026.1.11 and earlier allows an authenticated user to authenticate as other users, including administrators, via reuse of a session code from an external authentication flow...

EUVD-2026-17919

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...

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...

CVE-2026-4829

Improper authentication in the external OAuth authentication flow in Devolutions Server 2026.1.11 and earlier allows an authenticated user to authenticate as other users, including administrators, via reuse of a session code from an external authentication flow...

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...

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...

CVE-2026-4829

Summary: CVE-2026-4829 affects Devolutions Server versions up to 2026.1.11 (and earlier) and relates to improper authentication in the external OAuth flow. An authenticated user can authenticate as other users, including administrators, by reusing a session code from an external authentication fl...

EUVD-2025-209150

XenForo before 2.3.5 allows OAuth2 client applications to request unauthorized scopes. This affects any customer using OAuth2 clients on any version of XenForo 2.3 prior to 2.3.5, potentially allowing client applications to gain access beyond their intended authorization level...

CVE-2025-71278

XenForo before 2.3.5 allows OAuth2 client applications to request unauthorized scopes. This affects any customer using OAuth2 clients on any version of XenForo 2.3 prior to 2.3.5, potentially allowing client applications to gain access beyond their intended authorization level...

CVE-2025-71278

CVE-2025-71278 — XenForo : Affected are XenForo versions prior to 2.3.5. The issue enables OAuth2 client applications to request unauthorized scopes, potentially granting access beyond intended authorization. Impact is described in the CVSS metrics (high severity across confidentiality, integrity...

CVE-2025-71278 XenForo OAuth2 Unauthorized Scope Request

XenForo before 2.3.5 allows OAuth2 client applications to request unauthorized scopes. This affects any customer using OAuth2 clients on any version of XenForo 2.3 prior to 2.3.5, potentially allowing client applications to gain access beyond their intended authorization level...

CVE-2025-71278

XenForo before 2.3.5 allows OAuth2 client applications to request unauthorized scopes. This affects any customer using OAuth2 clients on any version of XenForo 2.3 prior to 2.3.5, potentially allowing client applications to gain access beyond their intended authorization level...

PT-2026-29829

Name of the Vulnerable Software and Affected Versions PraisonAI versions prior to 4.5.97 Description An authentication bypass exists in the multi-agent teams system where the validate token function within OAuthManager returns True for any token not found in its internal store, which is empty by...

PT-2026-29593

Name of the Vulnerable Software and Affected Versions Reviactyl versions 26.2.0-beta.1 through 26.2.0-beta.4 Description A flaw in the OAuth authentication process allowed for automatic linking of social accounts based solely on matching email addresses. An attacker could create or control a soci...

PT-2026-29659

Name of the Vulnerable Software and Affected Versions Tinyauth versions prior to 5.0.5 Description Tinyauth is an authentication and authorization server. The GenericOAuthService, GithubOAuthService, and GoogleOAuthService implementations store PKCE verifiers and access tokens as mutable struct...

Unintended Proxy or Intermediary ('Confused Deputy')

Overview fastmcp is a The fast, Pythonic way to build MCP servers and clients. Affected versions of this package are vulnerable to Unintended Proxy or Intermediary 'Confused Deputy' in the OAuthProxy.handleidpcallback function. An attacker can gain unauthorized access to resources associated with...

FastMCP: Missing Consent Verification in OAuth Proxy Callback Facilitates Confused Deputy Vulnerabilities

Summary While testing the GitHubProvider OAuth integration, which allows authentication to a FastMCP MCP server via a FastMCP OAuthProxy using GitHub OAuth, it was discovered that the FastMCP OAuthProxy does not properly validate the user's consent upon receiving the authorization code from GitHu...