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Azure CVE-2026-31957

CRITICAL
Initialization of a Resource with an Insecure Default (CWE-1188)
2026-03-11 security-advisories@github.com
Azure
10.0
CVSS 3.1 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
10.0 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 22:07 vuln.today
CVE Published
Mar 11, 2026 - 20:16 nvd
CRITICAL 10.0

DescriptionGitHub Advisory

Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune. From 3.0.0 to before 3.1.0, if Himmelblau is deployed without a configured tenant domain in himmelblau.conf, authentication is not tenant-scoped. In this mode, Himmelblau can accept authentication attempts for arbitrary Entra ID domains by dynamically registering providers at runtime. This behavior is intended for initial/local bootstrap scenarios, but it can create risk in remote authentication environments. This vulnerability is fixed in 3.1.0.

AnalysisAI

Default password in Himmelblau Azure Entra ID suite 3.0.0-3.0.x. CVSS 10.0.

Technical ContextAI

CWE-1188.

Affected ProductsAI

Himmelblau 3.0.0-3.0.x

RemediationAI

Update to 3.1.0. Configure password.

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CVE-2026-31957 vulnerability details – vuln.today
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