CVE-2026-20223
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. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-csw-pnbsa-g8WEnuy Security Impact Rating: Critical CVE: CVE-2026-20223
CSIRTS triage
- What
- There is an unauthorized API access vulnerability in Cisco Secure Workload.
- Who is affected
- Users of Cisco Secure Workload are affected.
- Urgency
- Immediate remediation is critical due to the potential for unauthorized access and data exposure.
- Action
- Update to the latest version of Cisco Secure Workload.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.83% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 53% of all EPSS-scored CVEs.
Advisory coverage (1)
- criticalCisco Secure Workload Unauthorized API Access Vulnerabilitycisco-psirt · 2026-05-20
External references
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