Threat Intelligence / CVE / CVE-2026-20223

CVE-2026-20223

CVSS 10 (CRITICAL) · EPSS 0.1% · Published 2026-05-20

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 v3 vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Weaknesses (CWE)

CWE-306

Threats tracking this CVE

Cisco Secure Workload CVE-2026-20223 — Maximum-Severity Unauthenticated Site Admin Privilege Escalation via Internal REST API Access-Validation Flaw — CRITICAL

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-csw-pnbsa-g8WEnuy

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