CVE-2026-67335: Improper Authentication

better-auth versions before 1.6.2 fail to validate the OAuth state parameter against the stored nonce when using cookie-backed state storage without PKCE. Attackers can forge the state parameter and supply an attacker-controlled authorization code to create authenticated sessions bound to the...

CVE-2026-47158: Cross-Site Request Forgery (CSRF)

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-2026-12740

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-2026-42565: URL Redirection to Untrusted Site

@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...

CVE-2026-33720: Incorrect Authorization

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...

GHSA-HP6R-R9VC-Q8WX FastAPI SSP is vulnerable to Cross-site Request Forgery (CSRF) through improper OAuth parameter validation

Versions of the package fastapi-sso before 0.19.0 are vulnerable to Cross-site Request Forgery CSRF due to the improper validation of the OAuth state parameter during the authentication callback. While the getloginurl method allows for state generation, it does not persist the state or bind it to...

EUVD-2022-4779

Malicious code in bioql PyPI...

CVE-2019-10315

Jenkins GitHub Authentication Plugin 0.31 and earlier did not use the state parameter of OAuth to prevent CSRF...

CVE-2022-0916

An issue was discovered in Logitech Options. The OAuth 2.0 state parameter was not properly validated. This leaves applications vulnerable to CSRF attacks during authentication and authorization operations...

CVE-2022-0916 Broken authentication on Logitech Options due to misvalidation of Oauth state parameter

An issue was discovered in Logitech Options. The OAuth 2.0 state parameter was not properly validated. This leaves applications vulnerable to CSRF attacks during authentication and authorization operations...