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CVE-2026-20223

Severity
CRITICAL
CVSS
10.0
EPSS
0.00835
Risk score
40.29
CISA KEV
No
PoC
No
Published
2026-05-20
Modified
2026-05-21
First seen
2026-08-05
Aliases
CNVD-2026-25126, EUVD-2026-31131, GHSA-P3HW-QJ46-C684
Products
Cisco Cisco Secure Workload 1.103.1.12, Cisco Cisco Secure Workload 2.0.1.34, Cisco Cisco Secure Workload 2.0.2.20, Cisco Cisco Secure Workload 2.1.1.29, Cisco Cisco Secure Workload 2.1.1.31, Cisco Cisco Secure Workload 2.1.1.33, Cisco Cisco Secure Workload 2.2.1.35, Cisco Cisco Secure Workload 2.2.1.39, Cisco Cisco Secure Workload 2.2.1.41, Cisco Cisco Secure Workload 2.3.1.41, Cisco Cisco Secure Workload 2.3.1.45, Cisco Cisco Secure Workload 2.3.1.49, Cisco Cisco Secure Workload 2.3.1.50, Cisco Cisco Secure Workload 2.3.1.51, Cisco Cisco Secure Workload 2.3.1.52, Cisco Cisco Secure Workload 2.3.1.53, Cisco Cisco Secure Workload 3.1.1.53, Cisco Cisco Secure Workload 3.1.1.54, Cisco Cisco Secure Workload 3.1.1.55, Cisco Cisco Secure Workload 3.1.1.59, Cisco Cisco Secure Workload 3.1.1.61, Cisco Cisco Secure Workload 3.1.1.65, Cisco Cisco Secure Workload 3.1.1.67, Cisco Cisco Secure Workload 3.1.1.70, Cisco Cisco Secure Workload 3.2.1.18, Cisco Cisco Secure Workload 3.2.1.19, Cisco Cisco Secure Workload 3.2.1.20, Cisco Cisco Secure Workload 3.2.1.28, Cisco Cisco Secure Workload 3.3.2.12, Cisco Cisco Secure Workload 3.3.2.16, Cisco Cisco Secure Workload 3.3.2.2, Cisco Cisco Secure Workload 3.3.2.23, Cisco Cisco Secure Workload 3.3.2.28, Cisco Cisco Secure Workload 3.3.2.33, Cisco Cisco Secure Workload 3.3.2.42, Cisco Cisco Secure Workload 3.3.2.50, Cisco Cisco Secure Workload 3.3.2.53, Cisco Cisco Secure Workload 3.4.1.1, Cisco Cisco Secure Workload 3.4.1.14, Cisco Cisco Secure Workload 3.4.1.19, Cisco Cisco Secure Workload 3.4.1.28, Cisco Cisco Secure Workload 3.4.1.34, Cisco Cisco Secure Workload 3.4.1.35, Cisco Cisco Secure Workload 3.4.1.6, Cisco Cisco Secure Workload 3.5.1.1, Cisco Cisco Secure Workload 3.5.1.17, Cisco Cisco Secure Workload 3.5.1.2, Cisco Cisco Secure Workload 3.5.1.20, Cisco Cisco Secure Workload 3.5.1.23, Cisco Cisco Secure Workload 3.5.1.30, Cisco:Cisco Secure Workload 1.102.21, Cisco:Cisco Secure Workload 2.0.1.34, Cisco:Cisco Secure Workload 2.0.2.20, Cisco:Cisco Secure Workload 2.1.1.33, Cisco:Cisco Secure Workload 2.2.1.35, Cisco:Cisco Secure Workload 2.2.1.39, Cisco:Cisco Secure Workload 2.2.1.41, Cisco:Cisco Secure Workload 2.3.1.49, Cisco:Cisco Secure Workload 2.3.1.50, Cisco:Cisco Secure Workload 2.3.1.51, Cisco:Cisco Secure Workload 2.3.1.52, Cisco:Cisco Secure Workload 3.1.1.55, Cisco:Cisco Secure Workload 3.1.1.61, Cisco:Cisco Secure Workload 3.1.1.65, Cisco:Cisco Secure Workload 3.10.1.1, Cisco:Cisco Secure Workload 3.10.7.4, Cisco:Cisco Secure Workload 3.2.1.18, Cisco:Cisco Secure Workload 3.2.1.20, Cisco:Cisco Secure Workload 3.2.1.28, Cisco:Cisco Secure Workload 3.3.2.12, Cisco:Cisco Secure Workload 3.3.2.2, Cisco:Cisco Secure Workload 3.3.2.28, Cisco:Cisco Secure Workload 3.3.2.33, Cisco:Cisco Secure Workload 3.3.2.35, Cisco:Cisco Secure Workload 3.3.2.42, Cisco:Cisco Secure Workload 3.3.2.50, Cisco:Cisco Secure Workload 3.4.1.1, Cisco:Cisco Secure Workload 3.4.1.20, Cisco:Cisco Secure Workload 3.4.1.40, Cisco:Cisco Secure Workload 3.5.1.17, Cisco:Cisco Secure Workload 3.5.1.20, Cisco:Cisco Secure Workload 3.5.1.23, Cisco:Cisco Secure Workload 3.5.1.30, Cisco:Cisco Secure Workload 3.5.1.31, Cisco:Cisco Secure Workload 3.6.1.17, Cisco:Cisco Secure Workload 3.6.1.21, Cisco:Cisco Secure Workload 3.6.1.35, Cisco:Cisco Secure Workload 3.6.1.5, Cisco:Cisco Secure Workload 3.8.1.39, Cisco:Cisco Secure Workload 3.8.1.53, Cisco:Cisco Secure Workload 3.9.1.1, Cisco:Cisco Secure Workload 3.9.1.10, Cisco:Cisco Secure Workload 3.9.1.24, Cisco:Cisco Secure Workload 3.9.1.28, Cisco:Cisco Secure Workload 3.9.1.38, Cisco:Cisco Secure Workload 3.9.1.52, Cisco:Cisco Secure Workload 3.9.1.64, Cisco:Cisco Secure Workload 3.9.1.69, Cisco:Cisco Secure Workload 4.0.2.4, Cisco:Cisco Secure Workload 4.0.2.5, cisco:secure_workload
Sources
cnvd CNVD-2026-25126
nvd CVE-2026-20223
euvd EUVD-2026-31131

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. 

References