cve 2026 49159

CVE-2026-49159 is a Microsoft-identified information disclosure vulnerability affecting Microsoft Graph, the cloud API layer that connects Microsoft 365, Microsoft Entra, Teams, Exchange Online, SharePoint, Intune, and other services. The advisory was published on July 23, 2026, but currently provides limited technical detail. This tag covers discussions about the vulnerability's implications for security, particularly regarding permission risks and the need for organizations to assess their exposure without assuming either minimal impact or broad tenant compromise. Content focuses on practical guidance for IT and security teams to reduce risks associated with Microsoft Graph permissions in enterprise environments.