BIT-OAUTH2-PROXY-2026-40574 OAuth2 Proxy has an Authorization Bypass in Email Domain Validation via Malformed Multi-@ Email Claims

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Prior to 7.15.2, an authorization bypass exists in OAuth2 Proxy as part of the emaildomain enforcement option. An attacker may be able to authenticate with an email claim such as [email protected]@company.com and...

CVE-2026-41259: Improper Enforcement of Behavioral Workflow

Mastodon is a free, open-source social network server based on ActivityPub. Prior to v4.5.9, v4.4.16, and v4.3.22, Mastodon allows restricting new user sign-up based on e-mail domain names, and performs basic validation on e-mail addresses, but fails to restrict characters that are interpreted...

PT-2026-34728

Name of the Vulnerable Software and Affected Versions Mastodon versions prior to 4.5.9 Mastodon versions prior to 4.4.16 Mastodon versions prior to 4.3.22 Description Mastodon allows restricting new user sign-up based on e-mail domain names and performs basic validation on e-mail addresses, but i...

Incorrect Authorization

Overview github.com/oauth2-proxy/oauth2-proxy is a reverse proxy that provides authentication with Google, Github or other providers. Affected versions of this package are vulnerable to Incorrect Authorization in the email domain validation. An attacker can gain unauthorized access by submitting ...

Incorrect Authorization

Overview github.com/oauth2-proxy/oauth2-proxy/v7 is a reverse proxy that provides authentication with Google, Github or other providers. Affected versions of this package are vulnerable to Incorrect Authorization in the email domain validation. An attacker can gain unauthorized access by submitti...

CVE-2026-40574

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Prior to 7.15.2, an authorization bypass exists in OAuth2 Proxy as part of the emaildomain enforcement option. An attacker may be able to authenticate with an email claim such as [email protected]@company.com and...

CVE-2026-40574

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Prior to 7.15.2, an authorization bypass exists in OAuth2 Proxy as part of the emaildomain enforcement option. An attacker may be able to authenticate with an email claim such as [email protected]@company.com and...

CVE-2026-40574 OAuth2 Proxy has an Authorization Bypass in Email Domain Validation via Malformed Multi-@ Email Claims

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Prior to 7.15.2, an authorization bypass exists in OAuth2 Proxy as part of the emaildomain enforcement option. An attacker may be able to authenticate with an email claim such as [email protected]@company.com and...

CVE-2026-40574 OAuth2 Proxy has an Authorization Bypass in Email Domain Validation via Malformed Multi-@ Email Claims

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Prior to 7.15.2, an authorization bypass exists in OAuth2 Proxy as part of the emaildomain enforcement option. An attacker may be able to authenticate with an email claim such as [email protected]@company.com and...

CVE-2026-40574 OAuth2 Proxy has an Authorization Bypass in Email Domain Validation via Malformed Multi-@ Email Claims

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Prior to 7.15.2, an authorization bypass exists in OAuth2 Proxy as part of the emaildomain enforcement option. An attacker may be able to authenticate with an email claim such as [email protected]@company.com and...

CVE-2026-40574

CVE-2026-40574 affects OAuth2 Proxy. Affected: deployments using email_domain restrictions. Issue: authorization bypass where an attacker can use a malformed multi-@ email claim (e.g., [email protected]@company.com) to satisfy a company.com domain check, even though the claim is not a valid email...

OAuth2 Proxy 安全漏洞

OAuth2 Proxy is a product offered by OAuth2 Proxy organizations that can provide a reverse proxy for authentication with Google, Github, or other providers. Versions of OAuth2 Proxy prior to 7.15.2 had security vulnerabilities. These vulnerabilities stemmed from the emaildomain enforcement option...

OAuth2 Proxy has an Authorization Bypass in Email Domain Validation via Malformed Multi-@ Email Claims

Impact An authorization bypass exists in OAuth2 Proxy as part of the emaildomain enforcement option. An attacker may be able to authenticate with an email claim such as [email protected]@company.com and satisfy an allowed domain check for company.com, even though the claim is not a valid email...

GHSA-C5C4-8R6X-56W3 OAuth2 Proxy has an Authorization Bypass in Email Domain Validation via Malformed Multi-@ Email Claims

Impact An authorization bypass exists in OAuth2 Proxy as part of the emaildomain enforcement option. An attacker may be able to authenticate with an email claim such as [email protected]@company.com and satisfy an allowed domain check for company.com, even though the claim is not a valid email...

PT-2026-33223

Name of the Vulnerable Software and Affected Versions OAuth2 Proxy versions prior to 7.15.2 Description An authorization bypass exists within the email domain enforcement option. An attacker can authenticate using a malformed email claim, such as [email protected]@company.com, to satisfy an allow...

CVE-2026-34411

Appsmith versions prior to 1.98 expose sensitive instance management API endpoints without authentication. Unauthenticated attackers can query endpoints like /api/v1/consolidated-api/view and /api/v1/tenants/current to retrieve configuration metadata, license information, and unsalted SHA-256...

CVE-2026-25811

PlaciPy is a placement management system designed for educational institutions. In version 1.0.0, the application derives the tenant identifier directly from the email domain provided by the user, without validating domain ownership or registration. This allows cross-tenant data access...

CVE-2026-25811

PlaciPy is a placement management system designed for educational institutions. In version 1.0.0, the application derives the tenant identifier directly from the email domain provided by the user, without validating domain ownership or registration. This allows cross-tenant data access...

CVE-2026-25811

PlaciPy is a placement management system designed for educational institutions. In version 1.0.0, the application derives the tenant identifier directly from the email domain provided by the user, without validating domain ownership or registration. This allows cross-tenant data access...

CVE-2026-25811 PlaciPy Email Domain Trust Enables Cross-Tenant Data Access (Multi-Tenant Isolation Failure)

PlaciPy is a placement management system designed for educational institutions. In version 1.0.0, the application derives the tenant identifier directly from the email domain provided by the user, without validating domain ownership or registration. This allows cross-tenant data access...