CVE-2026-20223
Cisco Secure Workload Unauthorized API Access Vulnerability
Description
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.
Weakness: CWE-306
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco Secure Workload (Tetration) | Cloud Security | cna-assigner |
Vendor-reported products (1)
- Cisco · Cisco Secure Workload
Vendor advisory
Cisco Secure Workload Unauthorized API Access Vulnerability
Cisco’s rating: Critical (advisory CVSS 10.0) · Published May 20, 2026
Bug ID: CSCwt99942
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from