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Solution
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Workaround
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Thu, 28 May 2026 14:15:00 +0000
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| Metrics |
ssvc
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Thu, 28 May 2026 03:30:00 +0000
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| First Time appeared |
Himmelblau-idm
Himmelblau-idm himmelblau |
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| Vendors & Products |
Himmelblau-idm
Himmelblau-idm himmelblau |
Wed, 27 May 2026 19:30:00 +0000
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| Description | Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune. From 2.0.0 to before 3.1.5 and 2.3.11, Himmelblau contained an authentication bypass vulnerability in the Device Authorization Grant (DAG) flow that allowed a user within the same Entra ID domain to obtain a local Unix session as another user by providing their own valid credentials. The vulnerability existed in the token_validate function, which validated domain aliases for legitimate multi-domain scenarios but failed to verify that the local part (username) of the authenticated user's UPN matched the requested account username. The function only compared domains, not the complete usernames. This vulnerability is fixed in 3.1.5 and 2.3.11. | |
| Title | Himmelblau: Authentication Bypass via Cross-User Local Session Impersonation in Device Authorization Grant (DAG) Flow | |
| Weaknesses | CWE-863 | |
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-05-28T13:54:57.795Z
Reserved: 2026-05-08T19:27:26.699Z
Link: CVE-2026-45108
Updated: 2026-05-28T13:54:52.675Z
Status : Received
Published: 2026-05-27T20:16:38.550
Modified: 2026-05-27T20:16:38.550
Link: CVE-2026-45108
No data.
OpenCVE Enrichment
Updated: 2026-05-28T03:15:05Z