CVE-2024-4598 in API Manager
Summary
by MITRE • 09/23/2025
An information disclosure vulnerability exists in multiple WSO2 products due to improper implementation of the enrich mediator. Authenticated users may be able to view unintended business data from other mediation contexts because the internal state is not properly isolated or cleared between executions.
This vulnerability does not impact user credentials or access tokens but may lead to leakage of sensitive business information handled during message flows.
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Analysis
by VulDB Data Team • 09/23/2025
The information disclosure vulnerability identified as CVE-2024-4598 represents a critical flaw in WSO2 products that stems from inadequate implementation of the enrich mediator component. This vulnerability manifests as a lack of proper isolation mechanisms between different mediation contexts, creating opportunities for authenticated users to access business data that should remain confined to specific processing environments. The flaw exists within the internal state management of the enrich mediator, which fails to properly clear or isolate its operational context between successive message processing executions. This misconfiguration enables cross-contamination of sensitive business data between different mediation flows, potentially exposing confidential information that should be restricted to specific transactional contexts. The vulnerability specifically affects WSO2 products that utilize the enrich mediator for message processing and transformation operations, making it particularly concerning for organizations relying on these middleware solutions for enterprise integration.
The technical nature of this vulnerability aligns with CWE-200, which addresses information exposure, and represents a classic case of improper isolation between processing contexts. The flaw operates at the mediation layer where the enrich mediator is responsible for enriching messages with additional data from various sources, but fails to maintain proper state boundaries between different message flows. When multiple messages are processed through the same mediator instance, the internal state retains references to previous processing contexts, allowing unauthorized access to business data that should not be accessible to other users or processes. This type of vulnerability falls under the ATT&CK technique T1213.002 for Data from Information Repositories, as it enables unauthorized access to stored business data through flawed mediation processes. The improper state management creates a persistent exposure window where sensitive data remains accessible across different mediation contexts, fundamentally undermining the security boundaries that should exist between distinct processing flows.
The operational impact of CVE-2024-4598 extends beyond simple data leakage to potentially compromise business intelligence and competitive advantages. Organizations utilizing affected WSO2 products may experience unauthorized access to customer data, financial information, proprietary business processes, and other sensitive business intelligence that flows through the mediation layer. While the vulnerability does not directly compromise authentication credentials or access tokens, the exposure of business data creates significant operational risks including regulatory compliance violations, competitive disadvantages, and potential legal consequences. The impact is particularly severe in industries with strict data protection requirements such as financial services, healthcare, and government sectors where unauthorized data access can result in substantial penalties and reputational damage. The vulnerability also creates opportunities for attackers to gather intelligence about business processes, data flows, and system configurations that could be leveraged for more sophisticated attacks. Organizations may face challenges in detecting this vulnerability since the data leakage occurs within legitimate processing flows, making it difficult to distinguish between normal operation and malicious access patterns.
Mitigation strategies for CVE-2024-4598 require immediate attention through patch management and architectural modifications to address the root cause of improper state isolation. Organizations should prioritize applying vendor-provided security patches that correct the enrich mediator implementation to ensure proper state clearing between mediation contexts. Additionally, implementing monitoring solutions that track access patterns through the mediation layer can help detect anomalous behavior that might indicate exploitation attempts. Network segmentation and access controls should be strengthened to limit the scope of potential impact, ensuring that only authorized users can access mediation components. Security teams should conduct comprehensive assessments of all WSO2 product deployments to identify affected systems and implement proper isolation mechanisms. Regular security testing of mediation flows, including penetration testing focused on data flow integrity, should be conducted to validate that proper state management is maintained. Organizations should also consider implementing data loss prevention measures that monitor for unauthorized data access patterns and establish clear audit trails for all mediation activities. The remediation process must include thorough testing to ensure that security improvements do not negatively impact legitimate business operations while maintaining the integrity of message processing workflows.