User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation via the isHealthCheckRequest function in pkg/middleware/healthcheck.go. An attacker can reach protected endpoints by sending a request with a configured health-check User-Agent, causing the middleware to treat the...

GHSA-5HVV-M4W4-GF6V OAuth2 Proxy's Health Check User-Agent Matching Bypasses Authentication in auth_request Mode

Impact A configuration-dependent authentication bypass exists in OAuth2 Proxy. Deployments are affected when all of the following are true: - OAuth2 Proxy is used with an authrequest-style integration for example, nginx authrequest - --ping-user-agent is set or --gcp-healthchecks is enabled In...

OAuth2 Proxy's Health Check User-Agent Matching Bypasses Authentication in auth_request Mode

Impact A configuration-dependent authentication bypass exists in OAuth2 Proxy. Deployments are affected when all of the following are true: - OAuth2 Proxy is used with an authrequest-style integration for example, nginx authrequest - --ping-user-agent is set or --gcp-healthchecks is enabled In...

CVE-2026-34457 OAuth2 Proxy: Health Check User-Agent Matching Bypasses Authentication in auth_request Mode

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Versions prior to 7.15.2 contain a configuration-dependent authentication bypass in deployments where OAuth2 Proxy is used with an authrequest-style integration such as nginx authrequest and either...

CVE-2026-34457 OAuth2 Proxy: Health Check User-Agent Matching Bypasses Authentication in auth_request Mode

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Versions prior to 7.15.2 contain a configuration-dependent authentication bypass in deployments where OAuth2 Proxy is used with an authrequest-style integration such as nginx authrequest and either...

CVE-2026-34457

CVE-2026-34457 affects OAuth2 Proxy prior to 7.15.2. In deployments using an auth_request-style integration (e.g., nginx auth_request) with either --ping-user-agent or --gcp-healthchecks enabled, any request bearing the configured health-check User-Agent is treated as authenticated, bypassing log...

CVE-2026-34457

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Versions prior to 7.15.2 contain a configuration-dependent authentication bypass in deployments where OAuth2 Proxy is used with an authrequest-style integration such as nginx authrequest and either...

CVE-2026-34457 OAuth2 Proxy: Health Check User-Agent Matching Bypasses Authentication in auth_request Mode

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Versions prior to 7.15.2 contain a configuration-dependent authentication bypass in deployments where OAuth2 Proxy is used with an authrequest-style integration such as nginx authrequest and either...

CVE-2026-34454

OAuth2 Proxy (oauth2-proxy) has a regression introduced in 7.11.0 where the session cookie is not cleared when rendering the sign-in page. This can allow a remaining authenticated session on the browser, particularly for logout flows that rely on the sign-in page. The issue is fixed in 7.15.2. De...

CVE-2026-34454 OAuth2 Proxy: Session cookie not cleared when rendering sign-in page

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. A regression introduced in 7.11.0 prevents OAuth2 Proxy from clearing the session cookie when rendering the sign-in page. In deployments that rely on the sign-in page as part of their logout flow, a user may be...

CVE-2026-34454

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. A regression introduced in 7.11.0 prevents OAuth2 Proxy from clearing the session cookie when rendering the sign-in page. In deployments that rely on the sign-in page as part of their logout flow, a user may be...

CVE-2026-34454 OAuth2 Proxy: Session cookie not cleared when rendering sign-in page

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. A regression introduced in 7.11.0 prevents OAuth2 Proxy from clearing the session cookie when rendering the sign-in page. In deployments that rely on the sign-in page as part of their logout flow, a user may be...

OAuth2 Proxy 安全漏洞

OAuth2 Proxy is a reverse proxy that can provide authentication for interactions with Google, Github, or other providers. Versions of OAuth2 Proxy prior to 7.15.2 contained a security vulnerability. This vulnerability stemmed from a configuration-related authentication bypass, which could allow...

CVE-2026-34454: Insufficient Session Expiration

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. A regression introduced in 7.11.0 prevents OAuth2 Proxy from clearing the session cookie when rendering the sign-in page. In deployments that rely on the sign-in page as part of their logout flow, a user may be...

CVE-2026-34457: Authentication Bypass by Spoofing

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Versions prior to 7.15.2 contain a configuration-dependent authentication bypass in deployments where OAuth2 Proxy is used with an authrequest-style integration such as nginx authrequest and either...

OAuth2 Proxy 代码问题漏洞

OAuth2 Proxy is a product developed by OAuth2 Proxy organization that can provide a reverse proxy for authentication with Google, Github, or other providers. Versions of OAuth2 Proxy from 7.11.0 to 7.15.2 had code-related vulnerabilities. This vulnerability stemmed from a regression issue that...

PT-2026-32954

Name of the Vulnerable Software and Affected Versions OAuth2 Proxy versions 7.11.0 through 7.15.1 Description A regression prevents the reverse proxy from clearing the session cookie when rendering the sign-in page. In deployments relying on the sign-in page for the logout flow, the browser sessi...

CVE-2026-39976

Laravel Passport provides OAuth2 server support to Laravel. From 13.0.0 to before 13.7.1, there is an Authentication Bypass for clientcredentials tokens. the league/oauth2-server library sets the JWT sub claim to the client identifier since there's no user. The token guard then passes this value ...

CVE-2026-35410 Directus has an Open Redirect via Parser Bypass in OAuth2/SAML Authentication Flow

Directus is a real-time API and App dashboard for managing SQL database content. Prior to 11.16.1, an open redirect vulnerability exists in the login redirection logic. The isLoginRedirectAllowed function fails to correctly identify certain malformed URLs as external, allowing attackers to bypass...

CVE-2026-29782

OpenSTAManager is an open source management software for technical assistance and invoicing. Prior to version 2.10.2, 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...