CVE-2026-20223

Published May 20, 2026

Last updated 22 days ago

CVSS critical 10.0

API

System

Overview

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. 
Source: psirt@cisco.com
NVD status: Analyzed
Products: secure_workload

Risk scores

CVSS 3.1

Type: Primary
Base score: 10
Impact score: 5.8
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Severity: CRITICAL

Weaknesses

psirt@cisco.com: CWE-306

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:cisco:secure_workload:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "FE262C72-F362-4A80-A879-EF1B581924C9",
            "versionEndExcluding": "3.10.8.3",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:cisco:secure_workload:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "F83C5A19-263C-4279-AE94-C572BC929E15",
            "versionEndExcluding": "4.0.3.17",
            "versionStartIncluding": "4.0",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ]
  }
]

References

Sources include official advisories and independent security research.

Overview

Risk scores

CVSS 3.1

Weaknesses

Social media

Configurations

Related CVEs

References