GO-2026-5059 ZITADEL: Server-Side Request Forgery (SSRF) and Denylist Bypass in Outgoing HTTP Components in github.com/zitadel/zitadel

ZITADEL: Server-Side Request Forgery SSRF and Denylist Bypass in Outgoing HTTP Components in github.com/zitadel/zitadel...

Origin Validation Error

Overview Affected versions of this package are vulnerable to Origin Validation Error in the JWT validation process. An attacker can gain unauthorized access by presenting a validly signed token from a trusted issuer, originally intended for a different service, to the authentication system. This ...

ZITADEL: Missing Token Audience Validation (`aud`) in JWT IdP Provider

Summary An authentication bypass vulnerability was discovered in ZITADEL's external JWT Identity Provider IdP implementation. When validating JSON Web Tokens JWTs from an external provider, ZITADEL properly checks the token's cryptographic signature and issuer iss, but it fails to validate the...

GHSA-G5H5-M4HM-XJRR ZITADEL: Missing Token Audience Validation (`aud`) in JWT IdP Provider

Summary An authentication bypass vulnerability was discovered in ZITADEL's external JWT Identity Provider IdP implementation. When validating JSON Web Tokens JWTs from an external provider, ZITADEL properly checks the token's cryptographic signature and issuer iss, but it fails to validate the...

GHSA-WXG7-W2V3-W38G ZITADEL: Missing Token Lifecyle Validation (`exp` and `iat`) in JWT IdP Provider

Summary A token lifecycle validation vulnerability was discovered in ZITADEL's external JWT Identity Provider IdP implementation. ZITADEL enforces a 1-hour maximum token age freshness window maxAge calculated from the token's issue time. However, this safety check is guarded by a presence...

ZITADEL: Missing Token Lifecyle Validation (`exp` and `iat`) in JWT IdP Provider

Summary A token lifecycle validation vulnerability was discovered in ZITADEL's external JWT Identity Provider IdP implementation. ZITADEL enforces a 1-hour maximum token age freshness window maxAge calculated from the token's issue time. However, this safety check is guarded by a presence...

GHSA-XQXV-4JC2-X56X ZITADEL: Missing client_id binding in OIDC authorization code exchange and refresh token flows (RFC 6749 Section 4.1.3 violation)

Summary Zitadel's OAuth2 / OIDC CodeExchange and RefreshToken implementations omit a critical validation step to ensure that the requesting client matches the client that originally initiated the authorization flow. This violates RFC 6749 Section 4.1.3, which mandates that the authorization serve...

Incorrect Authorization

Overview github.com/zitadel/zitadel/internal/api/oidc is a package for identity infrastructure Affected versions of this package are vulnerable to Incorrect Authorization in the CodeExchange and RefreshToken processes. An attacker can gain unauthorized access to user accounts or maintain persiste...

Authorization Bypass Through User-Controlled Key

Overview Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key via the user provisioning process. An attacker can gain unauthorized access to user records across organizational boundaries by recreating a deleted user with the same identifier in a...

Server-side Request Forgery (SSRF)

Overview Affected versions of this package are vulnerable to Server-side Request Forgery SSRF in the processing of user-supplied URLs in outgoing HTTP components, including notification channels, OIDC backchannel logout, and SAML metadata fetches. An attacker can access internal network resources...

ZITADEL: Server-Side Request Forgery (SSRF) and Denylist Bypass in Outgoing HTTP Components

Summary A Server-Side Request Forgery SSRF vulnerability was discovered in Zitadel affecting: HTTP Notification Channels: Used as an alternative to SMTP/Twilio configurations, sending payloads to user-defined URLs via HTTP POST webhooks. OIDC BackChannel Logout: Terminates sessions across differe...

GHSA-29JH-8CFQ-RR8X ZITADEL: Server-Side Request Forgery (SSRF) and Denylist Bypass in Outgoing HTTP Components

Summary A Server-Side Request Forgery SSRF vulnerability was discovered in Zitadel affecting: HTTP Notification Channels: Used as an alternative to SMTP/Twilio configurations, sending payloads to user-defined URLs via HTTP POST webhooks. OIDC BackChannel Logout: Terminates sessions across differe...

PT-2026-50738

Name of the Vulnerable Software and Affected Versions ZITADEL versions 4.0.0 through 4.11.0 ZITADEL versions 3.0.0 through 3.4.11 Description An authentication bypass exists in the external JWT Identity Provider IdP implementation. While the system validates the cryptographic signature and the...

CVE-2026-44671

ZITADEL is an open source identity management platform. From 2.71.11 to before 3.4.10 and 4.15.0, a vulnerability was discovered in Zitadel's LDAP identity provider implementation, which fails to properly escape user-provided usernames before incorporating them into LDAP search filters. This allo...

CVE-2026-44671 ZITADEL: LDAP Filter Injection in Login Flow

ZITADEL is an open source identity management platform. From 2.71.11 to before 3.4.10 and 4.15.0, a vulnerability was discovered in Zitadel's LDAP identity provider implementation, which fails to properly escape user-provided usernames before incorporating them into LDAP search filters. This allo...

CVE-2026-44671

ZITADEL is an open source identity management platform. From 2.71.11 to before 3.4.10 and 4.15.0, a vulnerability was discovered in Zitadel's LDAP identity provider implementation, which fails to properly escape user-provided usernames before incorporating them into LDAP search filters. This allo...

CVE-2026-44671 ZITADEL: LDAP Filter Injection in Login Flow

ZITADEL is an open source identity management platform. From 2.71.11 to before 3.4.10 and 4.15.0, a vulnerability was discovered in Zitadel's LDAP identity provider implementation, which fails to properly escape user-provided usernames before incorporating them into LDAP search filters. This allo...

EUVD-2026-30492

ZITADEL is an open source identity management platform. From 2.71.11 to before 3.4.10 and 4.15.0, a vulnerability was discovered in Zitadel's LDAP identity provider implementation, which fails to properly escape user-provided usernames before incorporating them into LDAP search filters. This allo...

CVE-2026-44671

Summary of CVE-2026-44671 (ZITADEL LDAP Filter Injection) : Zitadel’s LDAP IdP parsing fails to escape user-provided usernames in LDAP search filters, enabling unauthenticated users to perform blind LDAP Injection during login. The issue affects Zitadel deployments using LDAP IdP in the following...

CVE-2026-44671 ZITADEL: LDAP Filter Injection in Login Flow

ZITADEL is an open source identity management platform. From 2.71.11 to before 3.4.10 and 4.15.0, a vulnerability was discovered in Zitadel's LDAP identity provider implementation, which fails to properly escape user-provided usernames before incorporating them into LDAP search filters. This allo...