What is CVE-2026-49802?
A weak authentication vulnerability has been discovered in Microsoft SharePoint that allows an unauthorized attacker to bypass a security feature over a network. This enables bypassing the authentication mechanism and gaining unauthorized access. It is critical to apply the official Microsoft security update to affected SharePoint instances immediately.
Azərbaycanca: Microsoft SharePoint-də şəbəkə üzərindən autentifikasiya mexanizmini keçməyə imkan verən zəif autentifikasiya zəifliyi aşkarlanıb. Bu, icazəsiz şəxsə təhlükəsizlik funksiyasını bypass etməyə imkan yaradır. Təsirə məruz qalan sistemlərin dərhal rəsmi Microsoft təhlükəsizlik yeniləməsi ilə patch edilməsi tövsiyə olunur.
Related CVEs
link basis: same weakness class CWE-287; shared vendor: Microsoft
FAQ2
What security issue does CVE-2026-49802 cause in Microsoft SharePoint?
This vulnerability allows bypassing the authentication mechanism over a network. This enables an unauthorized attacker to bypass a security feature and gain unauthorized access.
What measure should be taken to protect against CVE-2026-49802?
The official Microsoft security update must be applied to affected SharePoint servers immediately.
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.