OAuth2::Client#request: Protocol-relative redirect Location overrides authority, leaking bearer Authorization to attacker host

Summary When an application uses OAuth2::Client typically via an OAuth2::AccessToken and the configured authorization server returns a redirect whose Location header is a protocol-relative URI of the form //attacker.example/leak, OAuth2::Clientrequest resolves the redirect with...

CVE-2026-54605

OAuth is a Ruby wrapper for the OAuth 1.0 and 1.0a protocols, providing clients and servers. From 0.5.5 to 1.1.5, OAuth::Consumertokenrequest parses the raw Location header of a 300 to 399 redirect returned by the OAuth server and follows the redirect recursively, which can mutate the consumer's...

CVE-2026-54030

LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.5, LibreChat's MCP OAuth implementation does not validate that the resource parameter from OAuth Protected Resource metadata RFC 9728 matches the configured MCP server URL, allowing a malicious MCP server to...

CVE-2026-48611

Improper authentication checks in the OAuth implementation allow account hijacking even when OAuth is not configured or enabled leading to unauthorized access in default installations...

CVE-2026-48611

Improper authentication checks in the OAuth implementation allow account hijacking even when OAuth is not configured or enabled leading to unauthorized access in default installations...

NPM: Better Auth: OAuth callback accepts mismatched `state` when cookie-backed state storage is used without PKCE

NPM: Better Auth: OAuth callback accepts mismatched state when cookie-backed state storage is used without PKCE vulnerability discovered by ? in WordPress Npm better-auth versions 1.6.2...

Open WebUI 安全漏洞

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted WebUI under open source. Versions of Open WebUI prior to 0.9.0 contained security vulnerabilities. These vulnerabilities were caused by TOCTOU race conditions in the LDAP and OAuth authentication processes, which could allow...

CVE-2026-34456

Reviactyl is an open-source game server management panel built using Laravel, React, FilamentPHP, Vite, and Go. From version 26.2.0-beta.1 to before version 26.2.0-beta.5, a vulnerability in the OAuth authentication flow allowed automatic linking of social accounts based solely on matching email...

CVE-2026-34456

Reviactyl is an open-source game server management panel built using Laravel, React, FilamentPHP, Vite, and Go. From version 26.2.0-beta.1 to before version 26.2.0-beta.5, a vulnerability in the OAuth authentication flow allowed automatic linking of social accounts based solely on matching email...

CVE-2026-34456 Reviactyl: OAuth account takeover via auto-linking

Reviactyl is an open-source game server management panel built using Laravel, React, FilamentPHP, Vite, and Go. From version 26.2.0-beta.1 to before version 26.2.0-beta.5, a vulnerability in the OAuth authentication flow allowed automatic linking of social accounts based solely on matching email...

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...

CVE-2026-33720 n8n Has Authorization Bypass in OAuth Callback via N8N_SKIP_AUTH_ON_OAUTH_CALLBACK

n8n is an open source workflow automation platform. Prior to version 2.8.0, when the N8NSKIPAUTHONOAUTHCALLBACK environment variable is set to true, the OAuth callback handler skips ownership verification of the OAuth state parameter. This allows an attacker to trick a victim into completing an...

CVE-2026-32235 @backstage/plugin-auth-backend: OAuth redirect URI allowlist bypass

Backstage is an open framework for building developer portals. Prior to 0.27.1, the experimental OIDC provider in @backstage/plugin-auth-backend is vulnerable to a redirect URI allowlist bypass. Instances that have enabled experimental Dynamic Client Registration or Client ID Metadata Documents a...

CVE-2026-32111 ha-mcp OAuth 2.1 DCR mode enables network reconnaissance via an error oracle

ha-mcp is a Home Assistant MCP Server. Prior to 7.0.0, the ha-mcp OAuth consent form beta feature accepts a user-supplied haurl and makes a server-side HTTP request to haurl/api/config with no URL validation. An unauthenticated attacker can submit arbitrary URLs to perform internal network...

PT-2026-24838

Name of the Vulnerable Software and Affected Versions ha-mcp versions prior to 7.0.0 Description ha-mcp is a Home Assistant MCP Server. Prior to version 7.0.0, the OAuth consent form renders user-controlled parameters using Python f-strings without proper HTML escaping. This allows an attacker wh...

Origin Validation Error

Overview @feathersjs/authentication-oauth is an oAuth 1 and 2 authentication for Feathers. Powered by Grant. Affected versions of this package are vulnerable to Origin Validation Error in the getAllowedOrigin function. An attacker can gain unauthorized access to sensitive information and...

CVE-2025-40905

WWW::OAuth 1.000 and earlier for Perl uses the rand function as the default source of entropy, which is not cryptographically secure, for cryptographic functions...

CVE-2025-1909

The BuddyBoss Platform Pro plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 2.7.01. This is due to insufficient verification on the user being supplied during the Apple OAuth authenticate request through the plugin. This makes it possible for...

CVE-2025-12419 Account takeover on OAuth/OpenID-enabled servers

Mattermost versions 10.12.x = 10.12.1, 10.11.x = 10.11.4, 10.5.x = 10.5.12, 11.0.x = 11.0.3 fail to properly validate OAuth state tokens during OpenID Connect authentication which allows an authenticated attacker with team creation privileges to take over a user account via manipulation of...

CVE-2025-12021 WP-OAuth <= 0.4.1 - Reflected Cross-Site Scripting

The WP-OAuth plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'errordescription' parameter in all versions up to, and including, 0.4.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary w...