CVE-2025-36327 in watsonx.data intelligence
Summary
by MITRE • 07/01/2026
IBM watsonx.data intelligence 5.2.0, 5.2.1, 5.2.2, 5.3.0 could allow an authenticated user to bypass security controls and perform unauthorized actions due to client-side enforcement of sever-side security.
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Analysis
by VulDB Data Team • 07/01/2026
This vulnerability affects IBM watsonx.data intelligence versions 5.2.0 through 5.3.0 where an authenticated user can bypass security controls and perform unauthorized actions due to improper security enforcement mechanisms. The issue stems from client-side validation being used to enforce server-side security policies, creating a fundamental architectural flaw that allows malicious users to manipulate security boundaries. When security controls are enforced on the client side rather than the server side, attackers can modify client-side code or bypass front-end validation entirely, leading to privilege escalation and unauthorized access to restricted functionality.
The technical implementation of this vulnerability demonstrates a classic misconfiguration in security enforcement architecture where the system relies on client-side checks to control access to sensitive operations. This pattern directly violates security best practices as outlined in CWE-676, which addresses the use of dangerous functions and improper security control enforcement. The flaw represents a failure in the principle of least privilege and server-side validation, allowing authenticated users to perform actions they should not be authorized to execute based on their role or permissions.
From an operational impact perspective, this vulnerability could enable authenticated attackers to access sensitive data, modify system configurations, or perform administrative functions without proper authorization. The security bypass affects the integrity and confidentiality of the watsonx.data intelligence platform, potentially allowing unauthorized users to manipulate data processing workflows, access restricted analytics, or compromise the overall security posture of the integrated data environment. Attackers could exploit this through various means including manipulating API calls, modifying front-end interfaces, or using automated tools to bypass client-side validation checks.
The mitigation strategy should focus on implementing robust server-side security controls and eliminating client-side enforcement of critical security policies. Organizations should ensure that all access control decisions are made server-side with proper authentication and authorization checks before any operations are executed. This includes implementing comprehensive input validation, enforcing strict access controls at the API level, and ensuring that all user actions are validated against proper permission models. Security controls should be designed following the principle of defense in depth as recommended by NIST cybersecurity framework, where multiple layers of protection work together to prevent unauthorized access.
The vulnerability aligns with ATT&CK technique T1078 which covers valid accounts and privilege escalation through unauthorized access to systems. IBM should implement proper session management, strengthen authentication mechanisms, and ensure that all security decisions are made server-side rather than relying on client-side enforcement. Regular security testing including penetration testing and code reviews should be conducted to identify similar issues in the application architecture. The fix requires comprehensive re-architecture of the security enforcement model to ensure that all user actions are properly validated against server-side access controls before any processing occurs, preventing the bypass scenario that currently exists in these vulnerable versions.
This security flaw represents a critical gap in the IBM watsonx.data intelligence platform's defense mechanisms and highlights the importance of proper security architecture design. The vulnerability demonstrates how client-side enforcement of server-side security policies creates exploitable weaknesses that can be leveraged by authenticated attackers to gain unauthorized access to system resources. Organizations using these affected versions should immediately implement temporary mitigations such as enhanced monitoring, restricted user permissions, and network segmentation while planning for the mandatory upgrade to patched versions that address this fundamental security architecture issue.