Azure Arc SQL Server Extension vulnerability

Permissive cross-domain policy with untrusted domains in Azure Arc allows an unauthorized attacker to elevate privileges over a network.

Published 8 Sep 2026Updated 20 Oct 20261 sources
CVSS 8.8

What happened

Permissive cross-domain policy with untrusted domains in Azure Arc allows an unauthorized attacker to elevate privileges over a network.

Affected versions

Azure Arc SQL Server Extension: 1.0.0.0 through before 1.1.3518.465 (custom) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.