ZITADEL is an open source identity management platform. Prior to 4.15.3, ZITADEL's OAuth2 Token Exchange endpoint for urn:ietf:params:oauth:grant-type:token-exchange does not verify that the subject token belongs to the requesting client or that requested scopes remain within the original token's scopes, allowing a low-privilege token to be exchanged for elevated permissions at another application. This issue is fixed in version 4.15.3.
Advisories
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Fixes
Solution
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Workaround
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References
History
Tue, 14 Jul 2026 14:30:00 +0000
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ssvc
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Fri, 10 Jul 2026 19:45:00 +0000
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Zitadel
Zitadel zitadel |
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| Vendors & Products |
Zitadel
Zitadel zitadel |
Fri, 10 Jul 2026 18:00:00 +0000
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| Description | ZITADEL is an open source identity management platform. Prior to 4.15.3, ZITADEL's OAuth2 Token Exchange endpoint for urn:ietf:params:oauth:grant-type:token-exchange does not verify that the subject token belongs to the requesting client or that requested scopes remain within the original token's scopes, allowing a low-privilege token to be exchanged for elevated permissions at another application. This issue is fixed in version 4.15.3. | |
| Title | ZITADEL: Unauthorized Token Privilege Escalation in OAuth2 Token Exchange | |
| Weaknesses | CWE-862 | |
| References |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-07-14T13:40:35.609Z
Reserved: 2026-06-22T16:39:01.043Z
Link: CVE-2026-56668
Updated: 2026-07-14T13:40:31.901Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-07-26T13:15:17Z
Weaknesses