XML External Entity injection in Power Apps - CVE-2026-122196
Published: November 11, 2026
Vulnerability identifier: #VU165704
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-122196
CWE-ID: CWE-611
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to read files on the affected system without authorization and disclose sensitive information.
The vulnerability exists due to improper restriction of XML external entity references in Microsoft Dynamics 365 (on-premises) when processing XML input. A remote user can submit crafted XML containing external entity references to read files on the affected system without authorization.
Affected software
Power Apps
How to mitigate CVE-2026-122196
Install security update from vendor's website.