WSO2 API Manager mTLS missing authentication

Summaryinfo

A vulnerability labeled as critical has been found in WSO2 API Manager, API Control Plane, Traffic Manager, Universal Gateway, Identity Server as Key Manager, Identity Server, Open Banking KM, Open Banking AM, Open Banking IAM and org.wso2.carbon.identity.auth.service. The impacted element is an unknown function of the component mTLS. The manipulation results in missing authentication. This vulnerability is known as CVE-2025-9312. It is possible to launch the attack remotely. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in WSO2 API Manager, API Control Plane, Traffic Manager, Universal Gateway, Identity Server as Key Manager, Identity Server, Open Banking KM, Open Banking AM, Open Banking IAM and org.wso2.carbon.identity.auth.service. It has been classified as critical. Affected is an unknown part of the component mTLS. The manipulation with an unknown input leads to a missing authentication vulnerability. CWE is classifying the issue as CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A missing authentication enforcement vulnerability exists in the mutual TLS (mTLS) implementation used by System REST APIs and SOAP services in multiple WSO2 products. Due to improper validation of client certificate–based authentication in certain default configurations, the affected components may permit unauthenticated requests even when mTLS is enabled. This condition occurs when relying on the default mTLS settings for System REST APIs or when the mTLS authenticator is enabled for SOAP services, causing these interfaces to accept requests without enforcing additional authentication. Successful exploitation allows a malicious actor with network access to the affected endpoints to gain administrative privileges and perform unauthorized operations. The vulnerability is exploitable only when the impacted mTLS flows are enabled and accessible in a given deployment. Other certificate-based authentication mechanisms such as Mutual TLS OAuth client authentication and X.509 login flows are not affected, and APIs served through the API Gateway of WSO2 API Manager remain unaffected.

The advisory is available at security.docs.wso2.com. This vulnerability is traded as CVE-2025-9312 since 08/21/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Banking Software

Vendor

• WSO2

Name

• API Control Plane
• API Manager
• Identity Server
• Identity Server as Key Manager
• Open Banking AM
• Open Banking IAM
• Open Banking KM
• org.wso2.carbon.identity.auth.service
• Traffic Manager
• Universal Gateway

License

• commercial

CPE 2.3info

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CPE 2.2info

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Entryinfo

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