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OpenAdvisories
Critical · 9.8 CVE-2026-4052 EUVD-2026-115721GHSA-w63q-qmf7-22jw

Privilege Escalation via Token Endpoint in WSO2 API Manager (APIM 4.x/IS as Resident Key Manager)

Published Nov 3, 2026 · Updated Nov 3, 2026 · Assigned by WSO2

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

VendorProductAffectedFixed
WSO2 WSO2 API Manager 4.1.0, 4.2.0, 4.3.0, 4.4.0, 4.5.0, 4.6.0 —
WSO2 WSO2 API Control Plane 4.5.0, 4.6.0 —
WSO2 WSO2 Identity Server Key Manager Connector (apim-km-wso2is) < 1.8.8 1.8.8

Advisories 1

References