CVE-2026-86206, CVE-2026-86207: N-able N-central Authentication Bypass (FIXED)

Overview While conducting research into a recent N-able N-central authentication bypass vulnerability ( CVE-2026-18577 ), Rapid7 Labs discovered two new vulnerabilities affecting the latest version of N-central. When chained together, these two vulnerabilities allow a remote unauthenticated attacker to bypass authentication and create a new attacker-controlled System administrator account on an affected server. CVE ID Description CWE CVSSv4 CVE-2026-86206 Semicolon/Forwarded access-control bypass CWE-791 6.9 (Medium) CVE-2026-86207 UserTwoFactorLogin authentication bypass CWE-305 7.7 (High) Bo