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Description

ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's OAuth2 and OIDC CodeExchange, RefreshToken, and device token flows fail to verify that the requesting client matches the client that initiated the authorization flow, allowing intercepted grants or refresh tokens to be exchanged under a different client. This issue is fixed in versions 3.4.12 and 4.15.2.

PUBLISHED Reserved 2026-06-17 | Published 2026-07-10 | Updated 2026-07-10 | Assigner GitHub_M




HIGH: 7.4CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Problem types

CWE-287: Improper Authentication

CWE-863: Incorrect Authorization

Product status

>= 4.0.0-rc.1, < 4.15.2
affected

< 3.4.12
affected

References

github.com/...itadel/security/advisories/GHSA-xqxv-4jc2-x56x

github.com/...ommit/562403079a98cf2059cdac11865a45e2f285be71

github.com/...ommit/5b1708e0e650398f0ebc3341714f0798b0118917

github.com/zitadel/zitadel/releases/tag/v3.4.12

github.com/zitadel/zitadel/releases/tag/v4.15.2

cve.org (CVE-2026-55672)

nvd.nist.gov (CVE-2026-55672)

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