CVE-2024-6541: WSO2 WSO2-Synapse

Medium severity, CVSS 6.8. EPSS: 0.3% chance of exploitation in the next 30 days.

The Class Mediator fails to correctly validate or sanitize `messageContext` properties when they are used to populate dynamic values. This allows authenticated users to potentially access or modify data across different system invocations that should be isolated. This weakness can lead to the disclosure of sensitive information belonging to other users or the unintended modification of system data by authenticated users. The exact impact depends on how `messageContext` properties are utilized within the affected WSO2 products.

Affected products

• WSO2 WSO2-Synapse: from 2.1.7.wso2v182, before 2.1.7.wso2v182_93 (fixed in 2.1.7.wso2v182_93); from 2.1.7.wso2v143, before 2.1.7.wso2v143_119 (fixed in 2.1.7.wso2v143_119); from 2.1.7.wso2v183, before 2.1.7.wso2v183_62 (fixed in 2.1.7.wso2v183_62); from 2.1.7.wso2v319, before 2.1.7.wso2v319_7 (fixed in 2.1.7.wso2v319_7); from 2.1.7.wso2v227, before 2.1.7.wso2v227_88 (fixed in 2.1.7.wso2v227_88); from 2.1.7.wso2v271, before 2.1.7.wso2v271_60 (fixed in 2.1.7.wso2v271_60); …
• WSO2 WSO2 API Manager: from 3.2.0, before 3.2.0.394 (fixed in 3.2.0.394); from 3.2.1, before 3.2.1.21 (fixed in 3.2.1.21); from 4.0.0, before 4.0.0.311 (fixed in 4.0.0.311); from 4.1.0, before 4.1.0.167 (fixed in 4.1.0.167); from 4.2.0, before 4.2.0.110 (fixed in 4.2.0.110); from 4.3.0, before 4.3.0.24 (fixed in 4.3.0.24)
• WSO2 WSO2 Enterprise Integrator: from 6.6.0, before 6.6.0.205 (fixed in 6.6.0.205)
• WSO2 WSO2 Micro Integrator: from 1.2.0, before 1.2.0.163 (fixed in 1.2.0.163); from 4.1.0, before 4.1.0.103 (fixed in 4.1.0.103); from 4.3.0, before 4.3.0.7 (fixed in 4.3.0.7)

Published 2026-08-06. Last modified 2026-08-31.