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...

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...