Overly permissive cross-domain whitelist in Azure Arc SQL Server Extension - CVE-2026-62895
Published: September 9, 2026
Vulnerability identifier: #VU148266
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-62895
CWE-ID: CWE-942
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass the CORS protection mechanism.
The vulnerability exists due to permissive cross-domain policy with untrusted domains in Azure Arc. A remote attacker can trick a victim to visit a malicous website and run arbitrary commands with elevated privileges.
Affected software
Azure Arc SQL Server Extension
How to mitigate CVE-2026-62895
Install updates from vendor's website.
Azure Arc SQL Server Extension - update to 1.1.3518.465