CRITICAL: Cisco Secure Workload Hit With CVSS 10.0 REST API Flaw That Hands Over Site Admin
Cisco disclosed CVE-2026-20223, a maximum severity CVSS 10.0 flaw in Secure Workload that allows unauthenticated remote attackers to gain Site Admin privileges by sending crafted requests to internal REST API endpoints. The vulnerability crosses tenant boundaries on both SaaS and on-premises deployments, has no workarounds, and is fixed in releases 3.10.8.3 and 4.0.3.17.