Quick answers
- Is CVE-2026-69843 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-69843 being exploited in the wild.
- How severe is CVE-2026-69843?
- Critical severity, with a CVSS score of 10, published 18 September 2026.
- Which products and versions are affected?
- Microsoft Fabric.
- Is there a fix for CVE-2026-69843?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-69843 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-69843?
- Check whether you run Microsoft Fabric. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
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