Auth bypass in Himmelblau-idm Himmelblau
CVE-2025-49012
Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune. Himmelblau versions 0.9.0 through 0.9.14 and 1.00-alpha are vulnerable to a privilege escalation issue when Entra ID group-based access restrictions are confi…
Vulnerability class: Broken Authentication
EPSS: 0.002 (43.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
Affected products
- Himmelblau-idm Himmelblau — versions >= 0.9.0, < 0.9.15, = 1.0.0-alpha
Weakness classification (CWE)
References
- https://github.com/himmelblau-idm/himmelblau/security/advisories/GHSA-gcxr-m95v-qcf7 (x_refsource_CONFIRM)
- https://github.com/himmelblau-idm/himmelblau/issues/554 (x_refsource_MISC)
- https://github.com/himmelblau-idm/himmelblau/commit/918577f6a8392a71d9d3d67f20962c372a0c01c6 (x_refsource_MISC)
- https://learn.microsoft.com/en-us/answers/questions/1035045/azure-ad-b2c-creates-groups-with-the-same-name-usi?utm_source=chatgpt.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-49012?
- CVE-2025-49012 is a medium-severity vulnerability in Himmelblau-idm Himmelblau, classified under Improper Authentication. CVSS score: 5.4/10. Published 2025-06-05.
- How severe is CVE-2025-49012?
- Medium severity. CVSS v3 base score is 5.4 out of 10.