CVE-2026-55659

Grist is spreadsheet software using Python as its formula language. Prior to 1.7.15, several server-rendered Grist pages embedded user-controlled values into the page and into inline scripts without fully escaping them, allowing cross-site scripting. On the main application page, a document's nam...

CVE-2026-12740

Summary: CVE-2026-12740 affects Plack::Middleware::OAuth for Perl up to version 0.10. The core issue is lack of OAuth 2.0 state parameter handling, enabling login CSRF. Specifically, RequestTokenV2 builds the authorization redirect without a state value, and AccessTokenV2 exchanges the callback c...

CVE-2026-48090 Envoy HTTP: OAuth2 filter late async token completion after stream teardown (UAF / crash risk)

Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.37.0 until 1.37.5 and 1.38.3, the HTTP OAuth2 filter envoy.filters.http.oauth2 can leave an in-flight async token exchange attached to a downstream stream that has already been torn down. A late...

CVE-2026-54030 LibreChat: Missing Resource Parameter Validation in MCP OAuth Flow

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-2026-54305

n8n is an open source workflow automation platform. Prior to 1.123.55, 2.25.7, and 2.26.2, three EE endpoints used by the Dynamic Credentials feature accepted any authenticated n8n session without performing per-resource ownership or scope checks on the target workflow or credential. An...

EUVD-2026-38228

The Azure Active Directory AAD authentication implementation contained multiple weaknesses in its OAuth 2.0 authorization flow that could allow attackers to bypass important security guarantees provided by the protocol. The application used the PHP session identifier sessionid as the OAuth state...

n8n: Cross-Tenant Credential Takeover via Dynamic Credentials EE Endpoints

Impact Three EE endpoints used by the Dynamic Credentials feature accepted any authenticated n8n session without performing per-resource ownership or scope checks on the target workflow or credential. An authenticated user with no project membership or credential sharing relationship could...

CVE-2026-48612

Improper state verification in the OAuth implementation could allow an attacker to manipulate the authentication flow and cause a victim’s account to be linked to an attacker-controlled account. This can result in unauthorized account linking and potential account takeover...

CVE-2026-44707

Chatwoot is a customer engagement suite. From 2.14.0 to before 4.13.0, a Pre-Account Takeover Pre-ATO vulnerability existed in Chatwoot's authentication flow. Because email confirmation was not enforced before an account became usable, an attacker could pre-register an email address they did not...

CVE-2026-44707

Chatwoot is a customer engagement suite. From 2.14.0 to before 4.13.0, a Pre-Account Takeover Pre-ATO vulnerability existed in Chatwoot's authentication flow. Because email confirmation was not enforced before an account became usable, an attacker could pre-register an email address they did not...

CVE-2026-42195

draw.io is a configurable diagramming and whiteboarding application. Prior to version 29.7.9, the draw.io client accepts a ?gitlab= URL parameter that overrides the GitLab server URL used during OAuth sign-in. A crafted link causes the user's click on draw.io's "Authorize in GitLab" dialog to ope...

@workos/authkit-session has an Open Redirect via state-derived redirect target

An open redirect vulnerability exists in AuthService.handleCallback due to insufficient validation of the returnPathname value derived from the OAuth state parameter. The state parameter is round-tripped through the identity provider IdP and can be influenced by an attacker. The handleCallback...

CVE-2026-42230 n8n: Open Redirect in MCP OAuth Consent Flow

n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, the /mcp-oauth/register endpoint accepted OAuth client registrations without authentication, allowing arbitrary redirecturi values to be registered. When a user denies the MCP OAuth consent dialog,...

GHSA-JJ8C-MMJ3-MMGV Authlib: Cross-site request forging when using cache

Summary There is no CSRF protection on the cache feature on most integrations clients. Details In authlib.integrations.starletteclient.OAuth, no CSRF protection is set up when using the cache parameter. When not using the cache parameter, the use of SessionMiddleware ties the client to the auth...

CVE-2026-3691

OpenClaw Client PKCE Verifier Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose stored credentials on affected installations of OpenClaw. User interaction is required to exploit this vulnerability in that the target must initiate an OAuth authorization...

EUVD-2026-21623

OpenClaw Client PKCE Verifier Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose stored credentials on affected installations of OpenClaw. User interaction is required to exploit this vulnerability in that the target must initiate an OAuth authorization...

CVE-2026-3691 OpenClaw Client PKCE Verifier Information Disclosure Vulnerability

OpenClaw Client PKCE Verifier Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose stored credentials on affected installations of OpenClaw. User interaction is required to exploit this vulnerability in that the target must initiate an OAuth authorization...

CVE-2026-35408

Directus is a real-time API and App dashboard for managing SQL database content. Prior to 11.17.0, Directus's Single Sign-On SSO login pages lacked a Cross-Origin-Opener-Policy COOP HTTP response header. Without this header, a malicious cross-origin window that opens the Directus login page retai...

CVE-2026-27124

A flaw was found in FastMCP and FastMCP OAuthProxy. The OAuthProxy, used for GitHub OAuth authentication, does not properly validate a user's consent after receiving an authorization code from GitHub. This, combined with GitHub's behavior of skipping the consent page for previously authorized...

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...