🔐 CVE Alert

CVE-2026-20223

CRITICAL 10.0

Cisco Secure Workload Unauthorized API Access Vulnerability

CVSS Score
10.0
EPSS Score
0.0%
EPSS Percentile
0th

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. 

CWE CWE-306
Vendor cisco
Product cisco secure workload
Ecosystems
Industries
NetworkingTelecommunications
Published May 20, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Affected Versions

Cisco / Cisco Secure Workload
2.2.1.41 3.2.1.18 3.3.2.50 3.4.1.28 3.4.1.34 2.3.1.45 2.3.1.41 3.3.2.28 3.1.1.59 2.0.2.20 2.1.1.33 2.1.1.29 3.2.1.28 3.4.1.35 3.1.1.65 3.1.1.67 2.0.1.34 2.3.1.49 2.2.1.39 3.4.1.19 3.3.2.23 3.1.1.61 3.1.1.54 3.5.1.17 3.3.2.33 3.5.1.1 2.3.1.53 3.5.1.20 3.5.1.30 3.3.2.16 3.1.1.55 3.4.1.6 2.3.1.50 2.3.1.52 3.2.1.19 2.2.1.35 3.1.1.53 3.1.1.70 3.2.1.20 3.5.1.2 1.103.1.12 2.3.1.51 3.3.2.42 3.4.1.1 3.3.2.12 2.1.1.31 3.5.1.23 3.3.2.53 3.4.1.14 3.3.2.2 3.4.1.20 3.3.2.35 2.2.1.34 1.102.21 3.3.2.5 3.5.1.31 3.6.1.5 3.2.1.31 3.5.1.37 3.4.1.40 3.6.1.17 3.6.1.21 3.2.1.32 3.2.1.33 3.6.1.35 3.6.1.36 3.7.1.5 3.6.1.47 3.7.1.22 3.6.1.52 3.7.1.39 3.8.1.1 3.7.1.51 3.8.1.19 3.8.1.36 3.7.1.59 3.8.1.39 3.9.1.1 3.9.1.10 3.9.1.24 3.9.1.25 3.9.1.28 3.9.1.38 3.8.1.53 3.9.1.52 3.10.1.1 3.9.1.64 3.10.2.11 3.9.1.66 3.10.3.19 3.9.1.69 3.10.4.8 3.10.5.6 4.0.1.1 4.0.2.4 4.0.2.5 3.10.6.3 3.10.7.4 4.0.3.13

References

NVD ↗ CVE.org ↗ EPSS Data ↗
sec.cloudapps.cisco.com: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-csw-pnbsa-g8WEnuy