CVE-2026-7327 in MarkLogic Server
Summary
by MITRE • 08/05/2026
An improper privilege management vulnerability in the REST API document processing pipeline of Progress MarkLogic Server before 11.3.6 and 12.0.3 allows an authenticated user with an administrative REST role to escalate privileges. This can result in unauthorized disclosure of sensitive server-side data when it is accessed by a higher-privileged user.
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Analysis
by VulDB Data Team • 08/05/2026
This vulnerability represents a critical privilege escalation flaw within Progress MarkLogic Server's REST API document processing pipeline affecting versions prior to 11.3.6 and 12.0.3. The issue stems from inadequate privilege management controls that allow authenticated users possessing administrative REST roles to manipulate their access permissions and elevate their privileges beyond intended boundaries. Such a weakness creates a pathway for malicious actors to gain unauthorized access to sensitive server-side data that would normally be restricted to higher-privileged users, fundamentally undermining the system's access control mechanisms.
The technical implementation flaw manifests in how the REST API handles privilege validation during document processing operations. When an authenticated user with administrative REST role permissions attempts to access certain server resources, the system fails to properly validate whether the user should have elevated privileges for that specific operation. This improper privilege management creates a condition where legitimate administrative functions can be exploited to gain additional access rights, effectively bypassing the principle of least privilege that should govern all enterprise database systems. The vulnerability operates at the application layer and directly impacts the server's authorization framework, making it particularly dangerous in environments where sensitive data is processed.
The operational impact of this vulnerability extends beyond simple privilege escalation, creating significant risks for organizations relying on MarkLogic Server for critical data operations. When exploited, the vulnerability enables unauthorized disclosure of sensitive server-side data that should only be accessible to users with appropriate clearance levels. This can result in data breaches affecting confidential information including personal data, financial records, or proprietary business information. The risk is compounded by the fact that exploitation requires only an existing administrative REST role, meaning that legitimate administrators who have been compromised could potentially use this vulnerability to access data beyond their intended scope. Organizations may face regulatory compliance violations and significant reputational damage if such vulnerabilities are exploited.
Organizations should implement immediate mitigations including applying the available patches for versions 11.3.6 and 12.0.3, which address the privilege management flaw in the REST API document processing pipeline. Network segmentation and monitoring of REST API access patterns can help detect anomalous privilege escalation attempts, while regular audit trails should be maintained to track user activities that might indicate exploitation of this vulnerability. According to CWE standards, this represents a privilege escalation issue classified under CWE-276, which specifically addresses improper privileges management within software systems. The vulnerability aligns with ATT&CK technique T1078 which covers valid accounts and privilege escalation tactics used by adversaries to gain access to restricted resources within enterprise environments.
This vulnerability demonstrates the critical importance of proper access control implementation in database server applications, particularly those handling sensitive data. The flaw underscores the necessity for robust privilege validation mechanisms that prevent authenticated users from escalating their access rights beyond authorized limits. Organizations should conduct thorough security assessments of their MarkLogic Server implementations to identify any potential exploitation paths and ensure that administrative roles are properly constrained according to organizational security policies. Regular security updates and vulnerability management processes become essential components of protecting against such privilege escalation vulnerabilities that can fundamentally compromise the security posture of enterprise database systems.