CVE-2026-1262 in InfoSphere Information Server
Summary
by MITRE • 03/25/2026
IBM InfoSphere Information Server 11.7.0.0 through 11.7.1.6 is affected by an information disclosure vulnerability.
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Analysis
by VulDB Data Team • 04/01/2026
IBM InfoSphere Information Server version 11.7.0.0 through 11.7.1.6 contains an information disclosure vulnerability that allows unauthorized access to sensitive data and system information. This vulnerability falls under the CWE-200 category of Information Exposure, where improper access controls or lack of proper data sanitization enables attackers to obtain confidential information that should remain protected. The flaw exists within the server's authentication and authorization mechanisms, potentially allowing malicious actors to bypass normal access restrictions and retrieve data that would otherwise be restricted to authorized users only. This type of vulnerability is particularly dangerous in enterprise environments where InfoSphere Information Server typically handles sensitive business data, personal information, and proprietary corporate assets.
The technical implementation of this information disclosure vulnerability stems from inadequate validation of user permissions and insufficient filtering of response data within the server's API endpoints and web interfaces. Attackers can exploit this weakness by crafting specific requests that bypass normal access controls, potentially gaining access to metadata, configuration files, user credentials, or business intelligence that should remain confidential. The vulnerability may manifest through various attack vectors including direct API manipulation, session hijacking, or through improperly secured administrative interfaces that expose internal system details to unauthorized parties. According to ATT&CK framework, this vulnerability maps to T1083 (File and Directory Discovery) and T1213 (Data from Information Repositories) techniques, as attackers can leverage the flaw to enumerate system resources and extract sensitive information from the repository.
The operational impact of this vulnerability extends beyond simple data exposure, potentially leading to significant business disruption, regulatory compliance violations, and financial losses. Organizations using affected versions of IBM InfoSphere Information Server may face unauthorized access to critical business data, which could result in competitive disadvantages, customer privacy breaches, and potential legal consequences under data protection regulations such as GDPR, HIPAA, or other applicable compliance frameworks. The vulnerability could enable attackers to gain insights into organizational data structures, business processes, and system configurations that would otherwise remain hidden from external parties. Additionally, the exposure of internal system information could facilitate more sophisticated attacks, as attackers might use the disclosed information to plan targeted exploitation of other system components or to conduct advanced persistent threats.
Organizations should immediately implement mitigations including applying the latest security patches provided by IBM, implementing additional access controls and authentication layers, and conducting thorough security assessments of their InfoSphere Information Server deployments. Network segmentation and monitoring solutions should be deployed to detect anomalous access patterns and unauthorized data retrieval attempts. Regular vulnerability scanning and penetration testing should be conducted to identify potential exploitation paths, while security teams should establish incident response procedures specifically addressing information disclosure scenarios. The implementation of proper input validation, output encoding, and access control enforcement mechanisms can significantly reduce the risk of exploitation, while adherence to security best practices such as principle of least privilege and defense in depth strategies will help protect against both current and future vulnerabilities in the system architecture.