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Issue with servicePrincipals and appRoleAssignedTo in some Entra Tenants

Abierto
#275 5 comentarios 0 reacciones 1 asignado Ver en GitHub

@eketo-msft ya está trabajando en esto.

Desde el 12/1/2026.

Evaluación

Este issue todavía no se ha evaluado.

Descripción

bug

Bicep version

0.39.26

Resource and API version

  • Microsoft.Graph/applications@beta → works in Entra tenant A & B
  • Microsoft.Graph/servicePrincipals@beta → works in Entra tenant A fails in Entra tenant B
  • Microsoft.Graph/appRoleAssignedTo@beta → works in Entra tenant A fails in Entra tenant B

Auth flow

Automated deployment
Bicep executed on Azure DevOps Agent using a service principal (workload identity federation)..

The same configured service principal (same permissions and roles) is used in both Entra tenants.

Deployment details

Insufficient privileges to complete the operation.
Graph client request id: cbf743cc-bffd-443c-a2dd-b1da094d75ac.
Graph request timestamp: 2025-12-30T14:06:55Z.

Describe the bug

Using the same Bicep template, same service principal, and same permissions:

  • Deployment works in Tenant A
  • Deployment fails in Tenant B

Failures occur only for:

  • Microsoft.Graph/servicePrincipals
  • Microsoft.Graph/appRoleAssignedTo

The same operations executed via direct Microsoft Graph REST API
(using PowerShell / az rest) succeed.

Expected behavior:
ARM/Bicep Graph deployments should behave consistently across tenants and align with direct Microsoft Graph API behavior.

Actual behavior:
Tenant-dependent failures occur only when using the ARM-based Microsoft Graph provider.

To Reproduce

No idea.

Additional context

  • Admin consent to SP used by Azure DevOps is granted in both Entra tenants
  • Same permissions, roles, API version, and payload
  • Same service principal identity
  • Tenant settings reviewed and appear identical
  • The issue occurs only when operations are executed via Azure Resource Manager
  • Direct Microsoft Graph API calls do not exhibit this tenant-dependent behavior

This suggests additional tenant-level enforcement applied only to
ARM-mediated Microsoft Graph operations.

Lenguaje dominante
TypeScript
Estrellas
81
Forks
15
Merge medio
2 d 14 h
PR fusionados (30 d)
4

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