CVE-2026-4052 Privilege Escalation via Token Endpoint in WSO2 API Manager (APIM 4.x/IS as Resident Key Manager)
CriticalCVSS 9.8
EPSS 0.36%
- Published
- Updated
- Exploit status
- No public exploit known
Description
This issue only impacts deployments where WSO2 Identity Server is configured as a Resident Key Manager with database sharing. In such environments, a self-registered user may gain access to the System REST APIs of WSO2 API Manager by obtaining a token from the WSO2 Identity Server token endpoint.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| WSO2 API Manager | = 4.1.0 | No fix listed |
| WSO2 API Manager | = 4.2.0 | No fix listed |
| WSO2 API Manager | = 4.3.0 | No fix listed |
| WSO2 API Manager | = 4.4.0 | No fix listed |
| WSO2 API Manager | = 4.5.0 | No fix listed |
| WSO2 API Manager | = 4.6.0 | No fix listed |
| WSO2 API Control Plane | = 4.5.0 | No fix listed |
| WSO2 API Control Plane | = 4.6.0 | No fix listed |
| WSO2 Identity Server Key Manager Connector (apim-km-wso2is) | < 1.8.8 | 1.8.8 |
References
- security.docs.wso2.com vendor-advisory