Rapid7 Analysis: Microsoft SharePoint JWT Token Authentication Bypass (CVE-2026-55040)

Overview On July 14, 2026, Rapid7 and Microsoft disclosed CVE-2026-55040, an authentication bypass vulnerability affecting Microsoft SharePoint. Today we are publishing a technical analysis of the vulnerability along with an accompanying proof-of-concept PoC script. Figure 1: The Rapid7 Labs PoC...

CVE-2026-55040: Microsoft SharePoint JWT Token Authentication Bypass (FIXED)

Overview Rapid7 Labs conducted a zero-day research project against Microsoft SharePoint, resulting in the discovery of two new vulnerabilities that, when chained together, achieve unauthenticated remote code execution RCE against a vulnerable SharePoint server. Today, both Rapid7 and Microsoft ar...

EUVD-2021-0792

Malware in sbrugna...

IBM Security Verify Access Input Validation Error Vulnerability

IBM Security Verify Access ISAM is a service from IBM USA that improves user access security. The service enables secure and simple access to platforms such as Web, mobile, IoT, and cloud technologies through the use of risk-based access, single sign-on, integrated access management controls,...