CVE-2026-97785: Microsoft Azure AD App Proxy authentication bypass

CVE-2026-97785 · Severity: critical · CVSS 10 · Published 2026-10-22

Azure AD App Proxy is a Microsoft cloud service that enables secure remote access to on-premises applications. A critical authentication weakness allows attackers to bypass authentication controls and gain unauthorized administrative access to protected applications without valid credentials, potentially exposing sensitive corporate data and systems.

Vendors: Microsoft.

Quick answers

Is CVE-2026-97785 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-97785 being exploited in the wild.
How severe is CVE-2026-97785?
Critical severity, with a CVSS score of 10, published 22 October 2026.
Which products and versions are affected?
Microsoft Azure AD App Proxy.
Is there a fix for CVE-2026-97785?
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-2026-97785 attacked?
It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-97785?
Check whether you run Microsoft Azure AD App Proxy. 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 improper authentication vulnerability in Azure AD App Proxy allows remote, unauthenticated attackers to escalate privileges through a network-based attack vector. The flaw permits unauthorized access that grants attacker-controlled privilege elevation over systems protected by the App Proxy, likely through manipulation of authentication tokens or authentication flow bypass.

Affected products

  • Microsoft Azure AD App Proxy

Timeline

  • 2026-10-22: disclosed

References

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