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CVE-2026-20223

CWE-306

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.

CVSS Score
10
Critical
EPSS — Exploit Probability
0.1%
Riskier than 20% of all CVEs
Exploitation
Not in CISA KEV
No federal exploitation record
Remediation
unknown
Check vendor advisories
NVD entry PoC / advisory

2 articles across 2 outlets · first covered May 21, 2026 · latest May 21, 2026

Coverage timeline