CVE-2026-20223

CriticalCVSS 10.0/10Last modified Jul 23, 2026

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. 

Metrics

CVSS 3.1 10.0/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
May 20, 2026
Last modified
Jul 23, 2026
NVD status
Analyzed

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CVE-2026-20223: Critical severity, CVSS 10.0 | Vulnix