CVE-2026-55671

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 loopback, internal IP, link-local, or redirected endpoints through DNS rebinding, redirects, or protocol downgrades. This issue is fixed in version 4.15.2.

CVSS

No CVSS.

References

Link	Resource
https://github.com/zitadel/zitadel/commit/b6f78086913b8d916bce9ab2e049ab0d84f947fd
https://github.com/zitadel/zitadel/releases/tag/v4.15.2
https://github.com/zitadel/zitadel/security/advisories/GHSA-29jh-8cfq-rr8x

Configurations

No configuration.

History

10 Jul 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-10 18:16

Updated : 2026-07-14 02:16

NVD link : CVE-2026-55671

Mitre link : CVE-2026-55671

CVE.ORG link : CVE-2026-55671

JSON object : View

Products Affected

No product.

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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