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.
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History
Fri, 10 Jul 2026 19:45:00 +0000
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Zitadel
Zitadel zitadel |
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Zitadel
Zitadel zitadel |
Fri, 10 Jul 2026 18:00:00 +0000
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| Description | 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. | |
| Title | ZITADEL: Server-Side Request Forgery (SSRF) and Denylist Bypass in Outgoing HTTP Components | |
| Weaknesses | CWE-918 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-07-10T17:17:50.095Z
Reserved: 2026-06-17T00:05:03.778Z
Link: CVE-2026-55671
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OpenCVE Enrichment
Updated: 2026-07-10T19:30:04Z