CVE-2026-70178 Microsoft Fabric Elevation of Privilege Vulnerability
An authorized attacker can elevate privileges in Microsoft Fabric due to missing authorization checks, requiring a vendor patch.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-70178?
CVE-2026-70178 is a high-severity missing authorization vulnerability in Microsoft Fabric, published on 3 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Missing authorization in Microsoft Fabric allows an authorized attacker to elevate privileges over a network.
Weakness: CWE-862
Which versions are affected by CVE-2026-70178?
It affects 1 product.
Products include Microsoft Fabric.
How do I fix CVE-2026-70178?
No fix has been published for CVE-2026-70178 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-70178 being exploited?
There is no known exploitation of CVE-2026-70178 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Fabric
Sources
Also known as GHSA-cxfp-3qwv-3cv4.