CVE-2024-27086

MSAL.NET applications targeting Xamarin Android and .NET Android (MAUI) susceptible to local denial of service

Published Apr 16, 2024 CVSS 3.1 · 3.9 Low EPSS < 1% KEV · Not listed
Description
The MSAL library enabled acquisition of security tokens to call protected APIs. MSAL.NET applications targeting Xamarin Android and .NET Android (e.g., MAUI) using the library from versions 4.48.0 to 4.60.0 are impacted by a low severity vulnerability.
A malicious application running on a customer Android device can cause local denial of service against applications that were built using MSAL.NET for authentication on the same device (i.e., prevent the user of the legitimate application from logging in) due to incorrect activity export configuration. MSAL.NET version 4.60.1 includes the fix. As a workaround, a developer may explicitly mark the MSAL.NET activity non-exported.

Remediation

No solution or workaround provided in the CVE record

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-1332 The MSAL library enabled acquisition of security tokens to call protected APIs. MSAL.NET applications targeting Xamarin Android and .NET Android (e.g., MAUI) using the library from versions 4.48.0 to 4.60.0 are impacted by a low severity vulnerability. A malicious application running on a customer Android device can cause local denial of service against applications that were built using MSAL.NET for authentication on the same device (i.e., prevent the user of the legitimate application from logging in) due to incorrect activity export configuration. MSAL.NET version 4.60.1 includes the fix. As a workaround, a developer may explicitly mark the MSAL.NET activity non-exported.
Github GHSA Github GHSA GHSA-x674-v45j-fwxw MSAL.NET applications targeting Xamarin Android and .NET Android (MAUI) susceptible to local denial of service
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Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Aug 2, 2024, 12:27 AM
Reserved
Feb 19, 2024, 2:43 PM
Status
Deferred
Published
Apr 16, 2024, 10:15 PM
Modified
Jun 17, 2026, 7:19 AM