CVE-2026-20223 - Vulnerability Details

- Cisco Secure Workload Unauthorized API Access Vulnerability

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. 

Published: 2026-05-20

Score: 10 Critical

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Cisco

Cisco Secure Workload

unknown

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

No data.

Vendor Product Confidence Versions

Cisco

Secure Workload

88%

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

Found an issue or want to improve our Enrichment? You can suggest it directly by opening an issue on our dedicated GitHub repository .

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00895.

Exploitation none

Automatable yes

Technical Impact total

References

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

History

Thu, 21 May 2026 08:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Cisco Cisco secure Workload
Vendors & Products		Cisco Cisco secure Workload

Wed, 20 May 2026 19:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Wed, 20 May 2026 16:45:00 +0000

Type	Values Removed	Values Added
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.
Title		Cisco Secure Workload Unauthorized API Access Vulnerability
Weaknesses		CWE-306
References		https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-csw-pnbsa-g8WEnuy
Metrics		cvssV3_1 `{'score': 10, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'}`

Subscriptions

Cisco Secure Workload

MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2026-05-20T16:06:30.740Z

Updated: 2026-05-21T03:55:37.210Z

Reserved: 2025-10-08T11:59:15.399Z

Link: CVE-2026-20223

Vulnrichment

Updated: 2026-05-20T18:32:21.218Z

NVD

Status : Awaiting Analysis

Published: 2026-05-20T17:16:20.400

Modified: 2026-06-17T10:17:18.397

Link: CVE-2026-20223

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-05-21T08:15:06Z

Weaknesses

CWE-306

Tracking

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Exploitation none

Automatable yes

Technical Impact total

Subscriptions

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