CVE-2026-47158

A flaw was found in Vaultwarden, a Bitwarden-compatible server. An unauthenticated attacker could exploit a vulnerability in the Single Sign-On SSO authorization flow. This flaw, caused by improper binding of the OAuth state parameter to the browser session and inadequate cleanup of SSO...

CVE-2026-47158 Vaultwarden: CSRF in SSO Authorization Flow

Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's SSO authorization flow did not bind the OAuth state parameter accepted by /connect/authorize to the initiating browser session, allowed attacker-controlled PKCE parameters, and left SsoAuth records intact...

CVE-2026-47158

CVE-2026-47158 – Vaultwarden (Rust) : A CSRF flaw in Vaultwarden’s SSO authorization flow prior to 1.36.0 allowed an unauthenticated attacker to induce IdP authentication and redeem tokens for a fully authenticated session. The root causes include: the OAuth state parameter from /connect/authoriz...

PYSEC-2026-1363 FastAPI Users Vulnerable to 1-click Account Takeover in Apps Using FastAPI SSO

Description The OAuth login state tokens are completely stateless and carry no per-request entropy or any data that could link them to the session that initiated the OAuth flow. generatestatetoken is always called with an empty statedata dict, so the resulting JWT only contains the fixed audience...

CVE-2026-12740

Plack::Middleware::OAuth versions through 0.10 for Perl do not support the OAuth 2.0 state parameter. RequestTokenV2 builds the provider authorization redirect without issuing a state value, and AccessTokenV2 exchanges the callback code and registers the resulting token into the session...

CVE-2026-12740 Plack::Middleware::OAuth versions through 0.10 for Perl do not support the OAuth 2.0 state parameter

Plack::Middleware::OAuth versions through 0.10 for Perl do not support the OAuth 2.0 state parameter. RequestTokenV2 builds the provider authorization redirect without issuing a state value, and AccessTokenV2 exchanges the callback code and registers the resulting token into the session...

CVE-2026-12740

Plack::Middleware::OAuth versions through 0.10 for Perl do not support the OAuth 2.0 state parameter. RequestTokenV2 builds the provider authorization redirect without issuing a state value, and AccessTokenV2 exchanges the callback code and registers the resulting token into the session...

EUVD-2026-41687

Plack::Middleware::OAuth versions through 0.10 for Perl do not support the OAuth 2.0 state parameter. RequestTokenV2 builds the provider authorization redirect without issuing a state value, and AccessTokenV2 exchanges the callback code and registers the resulting token into the session...

CVE-2026-12746

CVE-2026-12746 affects Dancer2::Plugin::Auth::OAuth::Provider versions before 0.23 (Perl). The underlying issue is that the OAuth 2.0 state parameter is not supported, causing the authentication_url to redirect without a state value and the callback to process the response without binding it to t...

CVE-2026-56425

CVE-2026-56425 affects the AAD authentication plugin for MISP (OAuth 2.0). The vulnerability stems from using session_id() as the OAuth state parameter, lack of session rotation after login, no dedicated nonce for the state, and not enforcing HTTPS for the redirect URI. Additional issue: OAuth er...

CVE-2026-42565

@workos/authkit-session is a toolkit for building WorkOS AuthKit framework integrations. Prior to 0.5.1, 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...

OpenClaude MCP OAuth Callback: State Check Bypass via error Param Leads to DoS

OAuth State Validation Bypass via error Parameter Causes Local Server DoS in MCP Auth Callback --- Description The OpenClaude MCP authentication flow starts a temporary local HTTP server to handle OAuth callbacks. To prevent CSRF attacks, the server validates a state parameter against an internal...

CVE-2026-44695 Outline: Slack OAuth state can link a victim Outline account to an attacker Slack identity

Outline is a service that allows for collaborative documentation. Prior to 1.7.1, the Slack integration callback for GET /auth/slack.post accepts an unsigned, session-independent OAuth state value. A third party who can obtain a Slack OAuth code for the same Outline Slack client can make a...

CVE-2026-44695

Summary: CVE-2026-44695 affects Outline before version 1.7.1. The Slack OAuth flow for GET /auth/slack.post accepts an unsigned, session-independent OAuth state value. If an attacker can obtain a Slack OAuth code for the same Outline Slack client, they can cause a logged-in Outline user to comple...

CVE-2026-42565 @workos/authkit-session: Open Redirect via state-derived redirect target

@workos/authkit-session is a toolkit for building WorkOS AuthKit framework integrations. Prior to 0.5.1, 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...

Cross-site Request Forgery (CSRF)

Overview apache-airflow-providers-keycloak is a Provider package apache-airflow-providers-keycloak for Apache Airflow Affected versions of this package are vulnerable to Cross-site Request Forgery CSRF in the login authentication process due to missing generation and validation of the OAuth 2.0...

CVE-2026-40948

The Keycloak authentication manager in apache-airflow-providers-keycloak did not generate or validate the OAuth 2.0 state parameter on the login / login-callback flow, and did not use PKCE. An attacker with a Keycloak account in the same realm could deliver a crafted callback URL to a victim's...

Duplicate Advisory: OpenClaw: Gemini OAuth exposed the PKCE verifier through the OAuth state parameter

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-9jpj-g8vv-j5mf. This link is maintained to preserve external references. Original Description OpenClaw before 2026.4.2 reuses the PKCE verifier as the OAuth state parameter in the Gemini OAuth flow, exposing it...

CVE-2026-34511 OpenClaw < 2026.4.2 - PKCE Verifier Exposure via OAuth State Parameter

OpenClaw before 2026.4.2 reuses the PKCE verifier as the OAuth state parameter in the Gemini OAuth flow, exposing it through the redirect URL. Attackers who capture the redirect URL can obtain both the authorization code and PKCE verifier, defeating PKCE protection and enabling token redemption...

CVE-2026-34511

OpenClaw before 2026.4.2 reuses the PKCE verifier as the OAuth state parameter in the Gemini OAuth flow, exposing it through the redirect URL. Attackers who capture the redirect URL can obtain both the authorization code and PKCE verifier, defeating PKCE protection and enabling token redemption...