AL26-023 - Vulnerability Impacting Microsoft SharePoint Server - CVE-2026-65660
Canada’s Cyber Centre says SharePoint flaw CVE-2026-65660 is actively exploited for code execution.
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Canada’s Cyber Centre says SharePoint flaw CVE-2026-65660 is actively exploited for code execution.
CVE-2026-65660 allows authenticated low-privilege users to execute arbitrary code on vulnerable on-premises Microsoft SharePoint servers via a SafeControls bypass.
Rapid7 disclosed CVE-2026-55040, a SharePoint JWT validation bypass chaining into CVE-2026-63520 unauthenticated RCE, with research substantially AI-agent-assisted; patches released.
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