CVE-2026-88405

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

A remote code execution (RCE) vulnerability in the RemoteRegisterFunctionService function (/remote/remote-register-function.service.ts) of Univer v1.0.0-alpha.2 allows attackers to execute arbitrary code via a crafted payload.

Published 2026-09-21. Last modified 2026-09-24.