CVE-2026-13449
Summary
by MITRE • 06/30/2026
IBM Business Automation Manager Open Editions 9.0.0 through 9.4.2 is vulnerable to an XML external entity injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources.
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Analysis
by VulDB Data Team • 06/30/2026
The vulnerability in IBM Business Automation Manager Open Editions 9.0.0 through 9.4.2 represents a critical XML external entity injection flaw that falls under the CWE-611 category of insecure direct object references and specifically manifests as an XXE attack vector. This weakness occurs when the application processes XML data without proper validation or sanitization of external entity declarations, allowing malicious actors to manipulate the XML parser behavior. The vulnerability stems from insufficient input validation mechanisms within the XML processing pipeline where external entities are not properly restricted or disabled during document parsing operations.
Attackers can exploit this XXE vulnerability by crafting specially formatted XML requests that include external entity references pointing to internal system resources or network endpoints. When the vulnerable application processes such malformed XML data, the XML parser resolves these external entities which can lead to information disclosure through data exfiltration from internal systems, or cause denial of service conditions by consuming excessive memory resources through recursive entity expansion attacks. The remote exploitation capability means that adversaries do not require local system access or network proximity to carry out successful attacks against affected installations.
The operational impact of this vulnerability extends beyond simple information disclosure to include potential system instability and resource exhaustion scenarios. When exploited for memory consumption attacks, the XXE vulnerability can cause significant performance degradation or complete service unavailability through heap overflow conditions. The attack surface is particularly concerning given that IBM Business Automation Manager typically handles sensitive business data and process automation workflows where unauthorized access to internal system information could lead to broader security compromise. Organizations running these vulnerable versions face risk of unauthorized data access, system resource depletion, and potential escalation to more severe attack vectors within their infrastructure.
Security mitigations for this XXE vulnerability should focus on implementing comprehensive XML parser configuration changes that disable external entity resolution entirely. Organizations must ensure that all XML processing components are configured to reject external entity declarations and that internal general entities are restricted from referencing external resources. The recommended approach involves setting appropriate parser flags and configuration parameters to prevent XXE attacks, while also implementing input validation mechanisms that sanitize all incoming XML data before processing. Additionally, network segmentation and access controls should be enforced to limit exposure of vulnerable components to untrusted networks, following the principle of least privilege as outlined in cybersecurity frameworks such as NIST SP 800-53. Regular security updates and patch management procedures should be implemented to address this vulnerability promptly, as the attack surface remains significant for any organization utilizing affected IBM Business Automation Manager versions.