Is CVE-2026-4052 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-4052?

CVE-2026-4052 has a CVSS v3 severity of CRITICAL (9.8).

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CVE-2026-4052

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.