cve 2026 55051

The cve 2026 55051 tag covers Microsoft’s security fix for an information-disclosure vulnerability in SharePoint Server. The issue affects SharePoint Server 2016, SharePoint Server 2019, and SharePoint Server Subscription Edition in on-premises environments. Microsoft describes the flaw as an authenticated server-side request forgery vulnerability that can allow sensitive data to be obtained over a network. Coverage includes the July 14 security updates, the vulnerability’s Important severity rating, and its CVSS 3.1 score of 6.5. The available guidance emphasizes applying the final SharePoint security fixes across remaining affected farms and references Microsoft’s Security Update Guide and the National Vulnerability Database.