Junglewise Threat Intelligence

CVE-2026-69843: Microsoft Fabric authentication bypass by spoofing

CVE-2026-69843 · Severity: critical · CVSS 10 · Published 2026-09-18

Vendors: Microsoft.

Executive brief

Microsoft Fabric is a data analytics and business intelligence platform used by enterprises to manage and analyze large datasets. An authentication bypass vulnerability allows unauthorized attackers to spoof credentials and gain elevated privileges, enabling them to access sensitive data or modify analytics configurations without proper authorization.

Technical details

An authentication bypass vulnerability in Microsoft Fabric allows attackers to spoof authentication mechanisms and escalate privileges. The vulnerability is exploitable over the network without requiring prior authentication. No patch information is currently available from the provided sources.

Affected products

  • Microsoft Fabric

Timeline

  • 2026-09-18: disclosed

References