CVE-2026-26123 Microsoft Authenticator Information Disclosure Vulnerability
An unauthorized attacker can locally disclose sensitive information from Microsoft Authenticator on Android and iOS devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-26123?
CVE-2026-26123 is a medium-severity vulnerability in Microsoft Authenticator for Android, published on 10 Mar 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Cwe is not in rca categories in Microsoft Authenticator allows an unauthorized attacker to disclose information locally.
Weakness: CWE-939
Which versions are affected by CVE-2026-26123?
It affects 1 product.
Products include Microsoft Authenticator.
How do I fix CVE-2026-26123?
No fix has been published for CVE-2026-26123 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-26123 being exploited?
There is no known exploitation of CVE-2026-26123 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Authenticator for Android
Sources
Also known as GHSA-5mf6-5mjf-6v7r.