What is CVE-2026-50459?
A weak authentication vulnerability has been identified in Microsoft SharePoint (CVE-2026-55040). This flaw allows an unauthorized attacker to bypass a security feature over a network. SharePoint administrators should urgently apply the security update released by Microsoft.
Azərbaycanca: Microsoft SharePoint-də autentifikasiya zəifliyi aşkarlanıb (CVE-2026-55040). Bu qüsur şəbəkə üzərindən icazəsiz hücumçuya təhlükəsizlik funksiyasını keçməyə imkan verir. SharePoint administratorları təcili olaraq Microsoft tərəfindən buraxılan təhlükəsizlik yeniləməsini tətbiq etməlidirlər.
Related CVEs
link basis: same weakness class CWE-287; shared vendor: Microsoft
FAQ2
What does the authentication vulnerability CVE-2026-50459 in Microsoft SharePoint allow?
This flaw allows an unauthorized attacker to bypass a security feature over a network.
What should be done to mitigate the CVE-2026-50459 vulnerability?
SharePoint administrators should urgently apply the security update released by Microsoft.
See also6
This explainer is AI-written from source data — skopnix's own reporting on this CVE; CVSS scores, vendors and versions are never invented. See NVD for the official record.