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7 Things to Know About CVE-2026-55040: The SharePoint Authentication Bypass Under Active Attack

calendar_today August 19, 2026 person Benedicte Matran domain cybelangel

A critical Microsoft SharePoint vulnerability is being actively exploited in the wild, less than 24 hours after a public proof-of-concept landed online. Here is what your team needs to know right now. 1.

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