Site Admin access via unauthenticated internal REST APIs
Published May 20, 2026 · Updated May 20, 2026
Missing authentication in Cisco Secure Workload internal REST APIs allows remote attackers to read and change resources across tenants. The affected endpoints insufficiently validate and authenticate crafted API requests, so they process them with Site Admin privileges. Exposure applies to SaaS and on-premises cluster deployments regardless of configuration, but not to the web management interface.
Summary
What happened
Missing authentication in Cisco Secure Workload internal REST APIs allows remote attackers to read and change resources across tenants. The affected endpoints insufficiently validate and authenticate crafted API requests, so they process them with Site Admin privileges. Exposure applies to SaaS and on-premises cluster deployments regardless of configuration, but not to the web management interface.
The record
- CVE
- CVE-2026-20223
- Published
- May 20, 2026
- Updated
- May 20, 2026
- Vendor
- ClamAV
- Product
- Cisco Secure Workload
- Classifications
- CWE-306, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 20, 2026CVE publishedPublication date reported by the CVE source.
- May 20, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.102.21
- Affected versionversion=1.103.1.12
- Affected versionversion=2.0.1.34
- Affected versionversion=2.0.2.20
- Affected versionversion=2.1.1.29
- Affected versionversion=2.1.1.31
- Affected versionversion=2.1.1.33
- Affected versionversion=2.2.1.34
- Affected versionversion=2.2.1.35
- Affected versionversion=2.2.1.39
- Affected versionversion=2.2.1.41
- Affected versionversion=2.3.1.41
- Affected versionversion=2.3.1.45
- Affected versionversion=2.3.1.49
- Affected versionversion=2.3.1.50
- Affected versionversion=2.3.1.51
- Affected versionversion=2.3.1.52
- Affected versionversion=2.3.1.53
- Affected versionversion=3.10.1.1
- Affected versionversion=3.10.2.11
- Affected versionversion=3.10.3.19
- Affected versionversion=3.10.4.8
- Affected versionversion=3.10.5.6
- Affected versionversion=3.10.6.3
- Affected versionversion=3.10.7.4
- Affected versionversion=3.1.1.53
- Affected versionversion=3.1.1.54
- Affected versionversion=3.1.1.55
- Affected versionversion=3.1.1.59
- Affected versionversion=3.1.1.61
- Affected versionversion=3.1.1.65
- Affected versionversion=3.1.1.67
- Affected versionversion=3.1.1.70
- Affected versionversion=3.2.1.18
- Affected versionversion=3.2.1.19
- Affected versionversion=3.2.1.20
- Affected versionversion=3.2.1.28
- Affected versionversion=3.2.1.31
- Affected versionversion=3.2.1.32
- Affected versionversion=3.2.1.33
- Affected versionversion=3.3.2.12
- Affected versionversion=3.3.2.16
- Affected versionversion=3.3.2.2
- Affected versionversion=3.3.2.23
- Affected versionversion=3.3.2.28
- Affected versionversion=3.3.2.33
- Affected versionversion=3.3.2.35
- Affected versionversion=3.3.2.42
- Affected versionversion=3.3.2.5
- Affected versionversion=3.3.2.50
- Affected versionversion=3.3.2.53
- Affected versionversion=3.4.1.1
- Affected versionversion=3.4.1.14
- Affected versionversion=3.4.1.19
- Affected versionversion=3.4.1.20
- Affected versionversion=3.4.1.28
- Affected versionversion=3.4.1.34
- Affected versionversion=3.4.1.35
- Affected versionversion=3.4.1.40
- Affected versionversion=3.4.1.6
- Affected versionversion=3.5.1.1
- Affected versionversion=3.5.1.17
- Affected versionversion=3.5.1.2
- Affected versionversion=3.5.1.20
- Affected versionversion=3.5.1.23
- Affected versionversion=3.5.1.30
- Affected versionversion=3.5.1.31
- Affected versionversion=3.5.1.37
- Affected versionversion=3.6.1.17
- Affected versionversion=3.6.1.21
- Affected versionversion=3.6.1.35
- Affected versionversion=3.6.1.36
- Affected versionversion=3.6.1.47
- Affected versionversion=3.6.1.5
- Affected versionversion=3.6.1.52
- Affected versionversion=3.7.1.22
- Affected versionversion=3.7.1.39
- Affected versionversion=3.7.1.5
- Affected versionversion=3.7.1.51
- Affected versionversion=3.7.1.59
- Affected versionversion=3.8.1.1
- Affected versionversion=3.8.1.19
- Affected versionversion=3.8.1.36
- Affected versionversion=3.8.1.39
- Affected versionversion=3.8.1.53
- Affected versionversion=3.9.1.1
- Affected versionversion=3.9.1.10
- Affected versionversion=3.9.1.24
- Affected versionversion=3.9.1.25
- Affected versionversion=3.9.1.28
- Affected versionversion=3.9.1.38
- Affected versionversion=3.9.1.52
- Affected versionversion=3.9.1.64
- Affected versionversion=3.9.1.66
- Affected versionversion=3.9.1.69
- Affected versionversion=4.0.1.1
- Affected versionversion=4.0.2.4
- Affected versionversion=4.0.2.5
- Affected versionversion=4.0.3.13
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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