Microsoft Fabric Elevation of Privilege Vulnerability

CVE-2026-69843 is an elevation of privilege vulnerability in Microsoft Fabric (rated Critical, CVSS 10.0). Microsoft fixed it in the service; customers need to do nothing.

1 version

Facts

Microsoft id
CVE-2026-69843
Products
Microsoft Fabric
Severity
Critical
Impact
Elevation of Privilege
CVSS
10.0
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
Customer action required
No
Release
2026-Sep
Assigned by
Microsoft
Weakness
CWE-290: Authentication Bypass by Spoofing
MSRC revision
1.0
Status pages
Microsoft Fabric status
First captured by us
(from our first import of this list)
Microsoft last modified
Source
Security updates · open the original at Microsoft

Microsoft's revision notes

  1. Revision 1.0, 2026-09-17: Information published.

Microsoft says

Authentication bypass by spoofing in Microsoft Fabric allows an unauthorized attacker to elevate privileges over a network.

Security updates,

Read Microsoft's full post

What Microsoft changed

One version so far. If Microsoft edits it, each change shows here with what was removed and added.

  1. First version we captured ·

    The text as we first saw it

    Seen by us · Microsoft's timestamp · Microsoft's page

Other changes for Microsoft Fabric

Last updated