az storage account create encountering "NetworkAclsValidationFailure" with exit code 0

[tdihp]

Describe the bug

Hi, I'm trying to enable nfsv3 for blob storage. I'm getting this error message in the result:

{
...
  "error": {
    "code": "NetworkAclsValidationFailure",
    "message": "Validation of network acls failure: SubnetsHaveNoServiceEndpointsConfigured:Subnets aks of virtual network /subscriptions/<redacted>/resourceGroups/<redacted>/providers/Microsoft.Network/virtualNetworks/<redacted> do not have ServiceEndpoints for Microsoft.Storage resources configured. Add Microsoft.Storage to subnet's ServiceEndpoints collection before trying to ACL Microsoft.Storage resources to these subnets.."
  },
...
}

It is very easy to replicate:

1. create a $RG + $VNET/$SUBNETsubnet pair
2. run below

az storage account create -g $RG -n $NAME \
    --sku Standard_LRS \
    --kind StorageV2 \
    --enable-nfs-v3 --hns \
    --default-action Deny \
    --subnet "$SUBNET" --vnet-name "$VNET" --action "allow" \
    --min-tls-version TLS1_2

echo $?
# we found 0 even with error above shown

Related command

az storage account create

Errors

See above description, notice that it should be an error response, but exit code is zero

Issue script & Debug output

it is already apparent, don't think debug needed, but let me know

Expected behavior

should exit 1 instead

Environment Summary

azure-cli 2.79.0 *

core 2.79.0 *
telemetry 1.1.0

Extensions:
aks-preview 19.0.0b16
azure-iot-ops 0.4.0b3
k8s-configuration 2.0.0
k8s-extension 1.6.1
resource-graph 2.1.0
ssh 2.0.6

Dependencies:
msal 1.34.0b1
azure-mgmt-resource 23.3.0

Python location '/opt/az/bin/python3'
Config directory '/home/ubuntu/.azure'
Extensions directory '/home/ubuntu/.azure/cliextensions'

Python (Linux) 3.13.9 (main, Oct 28 2025, 09:10:27) [GCC 11.4.0]

Legal docs and information: aka.ms/AzureCliLegal

You have 2 update(s) available. Consider updating your CLI installation with 'az upgrade'

Additional context

No response

[azure-client-tools-bot-prd]

Hi @tdihp,

2.79.0 is not the latest Azure CLI(2.80.0).

If you haven't already attempted to do so, please upgrade to the latest Azure CLI version by following https://learn.microsoft.com/en-us/cli/azure/update-azure-cli.

[yonzhan]

Thank you for opening this issue, we will look into it.