EUVD-2026-42978

ZITADEL is an open source identity management platform. From 4.0.0-rc.1 through 4.15.1, ZITADEL's HTTP notification channels, OIDC BackChannel Logout, and SAML metadata URL fetches do not consistently validate user-defined URLs against protected denylist handling, allowing server-side requests to...

CVE-2026-55671 ZITADEL: Server-Side Request Forgery (SSRF) and Denylist Bypass in Outgoing HTTP Components

ZITADEL is an open source identity management platform. From 4.0.0-rc.1 through 4.15.1, ZITADEL's HTTP notification channels, OIDC BackChannel Logout, and SAML metadata URL fetches do not consistently validate user-defined URLs against protected denylist handling, allowing server-side requests to...

CVE-2026-55671

ZITADEL (github.com/zitadel/zitadel) is affected in versions 4.0.0-rc.1 through 4.15.1 by an SSRF in outgoing HTTP components (HTTP notification channels, OIDC BackChannel Logout, and SAML metadata URL fetches). The issue arises from inadequate validation against a protected denylist, allowing se...

CVE-2026-55671 ZITADEL: Server-Side Request Forgery (SSRF) and Denylist Bypass in Outgoing HTTP Components

ZITADEL is an open source identity management platform. From 4.0.0-rc.1 through 4.15.1, ZITADEL's HTTP notification channels, OIDC BackChannel Logout, and SAML metadata URL fetches do not consistently validate user-defined URLs against protected denylist handling, allowing server-side requests to...

CVE-2026-55669

ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's external JWT Identity Provider validates a token's signature and issuer iss but not the audience aud claim, allowing a validly signed token from a trusted issuer for another relying party to be accepted ...

CVE-2026-55670 ZITADEL: Cross-Tenant User Leakage via Recycled Identifiers

ZITADEL is an open source identity management platform. Prior to 4.15.1, ZITADEL's event store validation can retain the original resource owner for a deleted user identifier, causing a later user recreated with the same identifier in another organization to be provisioned under the original...

EUVD-2026-42977

ZITADEL is an open source identity management platform. Prior to 4.15.1, ZITADEL's event store validation can retain the original resource owner for a deleted user identifier, causing a later user recreated with the same identifier in another organization to be provisioned under the original...

CVE-2026-55670 ZITADEL: Cross-Tenant User Leakage via Recycled Identifiers

ZITADEL is an open source identity management platform. Prior to 4.15.1, ZITADEL's event store validation can retain the original resource owner for a deleted user identifier, causing a later user recreated with the same identifier in another organization to be provisioned under the original...

CVE-2026-55670

ZITADEL (open source identity management) prior to v4.15.2 is affected by a cross-tenant leakage in the event store validation: when a user is deleted, the original resource owner may remain associated with the deleted user’s ID and, if a new user is recreated in another organization with the sam...

CVE-2026-55669

CVE-2026-55669 affects ZITADEL: the external JWT Identity Provider failed to validate the audience (aud) claim, accepting a token signed for a different relying party. The issue, affecting ZITADEL’s JWT IdP implementation, is mitigated by requiring audience validation and is fixed in versions 3.4...

CVE-2026-55669 ZITADEL: Missing Token Audience Validation (`aud`) in JWT IdP Provider

ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's external JWT Identity Provider validates a token's signature and issuer iss but not the audience aud claim, allowing a validly signed token from a trusted issuer for another relying party to be accepted ...

CVE-2026-55669 ZITADEL: Missing Token Audience Validation (`aud`) in JWT IdP Provider

ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's external JWT Identity Provider validates a token's signature and issuer iss but not the audience aud claim, allowing a validly signed token from a trusted issuer for another relying party to be accepted ...

CVE-2026-55669 ZITADEL: Missing Token Audience Validation (`aud`) in JWT IdP Provider

ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's external JWT Identity Provider validates a token's signature and issuer iss but not the audience aud claim, allowing a validly signed token from a trusted issuer for another relying party to be accepted ...

EUVD-2026-42958

ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's external JWT Identity Provider validates a token's signature and issuer iss but not the audience aud claim, allowing a validly signed token from a trusted issuer for another relying party to be accepted ...

PT-2026-57253

Name of the Vulnerable Software and Affected Versions ZITADEL versions 3.0.0-rc.1 through 3.4.11 ZITADEL versions 4.0.0-rc.1 through 4.15.1 Description External JWT Identity Provider validation in the internal/idp/providers/jwt/session.go file skips expiration handling when an incoming token omit...

PT-2026-57254

Name of the Vulnerable Software and Affected Versions ZITADEL versions prior to 4.15.3 Description The external identity provider handler fails to verify that the external identity provider confirmed ownership of an email address before performing auto-linking by email. While the system checks if...

PT-2026-57252

ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's external JWT Identity Provider validation in internal/idp/providers/jwt/session.go skips the maximum token age freshness check when an incoming token omits the iat claim, allowing arbitrarily old tokens...

GHSA-45GG-VH54-H5M9 vulnerabilities

Vulnerabilities for packages: knative-kafka-broker-fips, flux, opentofu, kubernetes-fips, prometheus-mongodb-exporter, cilium, containerd, trivy-operator-fips, aactl, kubevela-fips, nerdctl, prometheus, chisel-fips, cloudbeat-fips, kubernetes-dashboard, external-secrets-operator-fips, zitadel,...

GO-2026-5768 ZITADEL: Missing client_id binding in OIDC authorization code exchange and refresh token flows (RFC 6749 Section 4.1.3 violation) in github.com/zitadel/zitadel

ZITADEL: Missing clientid binding in OIDC authorization code exchange and refresh token flows RFC 6749 Section 4.1.3 violation in github.com/zitadel/zitadel...

GO-2026-5732 ZITADEL: Missing Token Lifecyle Validation (`exp` and `iat`) in JWT IdP Provider in github.com/zitadel/zitadel

ZITADEL: Missing Token Lifecyle Validation exp and iat in JWT IdP Provider in github.com/zitadel/zitadel...