SharePoint Server: news, advisories and analysis

CyberSecureToday covers SharePoint Server across 3 articles published between 18 Sep 2026 and 17 Oct 2026. The coverage includes 3 vulnerability advisories. 3 advisories are rated critical or high severity, and 2 involve flaws listed in CISA's Known Exploited Vulnerabilities catalog.

Stories on SharePoint Server most often intersect with Microsoft, Active Exploitation and Authentication Bypass, with Technology, Cloud & SaaS the most affected sector. The most recent story, “Microsoft SharePoint Cryptographic Signature Verification Flaw CVE-2026-102866 Enables Token Forgery and Account Takeover”, was published 17 Oct 2026. Every article is listed below, newest first, with the affected products, severity and remediation guidance in each piece.