CVE-2026-20223

A vulnerability in the access validation of internal REST APIs of Cisco Secure Workload could allow an unauthenticated, remote attacker to access site resources with the privileges of the Site Admin role. This vulnerability is due to insufficient validation and authentication when accessing REST API endpoints. An attacker could exploit this vulnerability if they are able to send a crafted API request to an affected endpoint. A successful exploit could allow the attacker to read sensitive information and make configuration changes across tenant boundaries with the privileges of the Site Admin user. SaaS deployments are already patched by Cisco, on-prem deployments should be patched as fast as possible. Cisco indicates there are no workarounds that address this vulnerability. This vulnerability was mitigated following internal discovery by Cisco security teams. The Cisco PSIRT is not aware of any public announcements or malicious use of CVE-2026-20223. Given the low attack complexity and the potentially high impact, future exploitation is anticipated.

EPSS 0.06% · 20.1th percentile