Microsoft SharePoint Server Deserialization RCE Exploited as Zero-Day, Now Added to CISA KEV (CVE-2026-58644 / CVE-2026-50522)

Scope: Microsoft SharePoint Server 2016, 2019, and Subscription Edition (All On-Premises Deployments)

Severity: Red

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Microsoft AD FS Zero-Day Actively Exploited to Grant Admin Privileges, Patched in Record July 2026 Patch Tuesday (CVE-2026-56155)

Scope: Microsoft Active Directory Federation Services (Windows Server 2019, 2022, 2025 with AD FS Role Installed)

Severity: Red

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JetBrains IntelliJ IDEA Critical Path Traversal in Workspace ID Handling Leads to Code Execution (CVE-2026-59792)

Scope: JetBrains IntelliJ IDEA Versions Before 2026.1.4 and Before 2026.2

Severity: Red

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Ultimate Member WordPress Plugin Unauthenticated Blind SQL Injection Exposes Database Contents (CVE-2026-15290)

Scope: Ultimate Member WordPress Plugin Versions up to and Including 2.10.1

Severity: Red

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vLLM OpenAI-Compatible API Server Authentication Bypass Allows Unauthenticated AI Inference Access (CVE-2026-48746)

Scope: vLLM Versions 0.3.0 through 0.21.x (Fixed in 0.22.0)

Severity: Red

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GitHub Enterprise Server Stored XSS via Markdown Rendering Allows Session Hijacking (CVE-2026-11962)

Scope: GitHub Enterprise Server Versions 3.10.0 to 3.10.10, 3.11.0 to 3.11.7, and 3.12.0 to 3.12.3

Severity: Medium

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