CVE-2026-8709 in MarkLogic Server
Summary
by MITRE • 08/05/2026
An improper privilege management vulnerability in the REST API document patch operation of Progress MarkLogic Server before 11.3.6 and 12.0.3 allows an authenticated user with a low-privileged REST role to escalate privileges and execute privileged operations against the Security database.
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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 implementation that undermines the fundamental security model of the database system. The issue specifically affects versions prior to 11.3.6 and 12.0.3, where an authenticated user possessing only a low-privileged REST role can manipulate the document patch operation to gain elevated access rights. This flaw directly violates the principle of least privilege and demonstrates a failure in access control enforcement mechanisms that should prevent users from executing operations beyond their designated permissions.
The technical root cause lies in the improper validation and authorization checks within the document patch API endpoint. When a user submits a patch request through the REST API, the system fails to adequately verify whether the requesting user has sufficient privileges to modify security-related documents or execute privileged operations against the Security database. This misconfiguration allows an attacker to craft malicious requests that bypass normal access controls, effectively enabling them to escalate their privileges from a standard REST user to a higher-privileged role capable of modifying system security settings.
The operational impact of this vulnerability extends beyond simple privilege escalation as it creates a pathway for attackers to compromise the entire MarkLogic server environment. Once an authenticated user gains elevated privileges, they can modify user accounts, change permissions, access sensitive data, and potentially execute arbitrary code within the database system. This vulnerability particularly affects organizations that rely on MarkLogic for enterprise content management and data integration, where security boundaries are critical for protecting intellectual property and maintaining compliance with regulatory requirements.
From a cybersecurity perspective, this vulnerability aligns with CWE-276, which addresses improper privileges and access control failures in software systems. The flaw also maps to several ATT&CK techniques including privilege escalation through API manipulation and credential access via application vulnerabilities. Organizations using MarkLogic Server should immediately implement mitigations including applying the available security patches, reviewing user permissions, and implementing additional monitoring for unusual API activity patterns that might indicate exploitation attempts.
The remediation approach requires immediate deployment of the patched versions 11.3.6 and 12.0.3, which address the underlying access control validation issues in the REST API document patch operations. Additionally, security administrators should conduct comprehensive audits of user roles and permissions to ensure no unauthorized privilege escalation has occurred during the vulnerability window. Network segmentation and API rate limiting measures can provide additional defense-in-depth layers while organizations should also implement continuous monitoring solutions that can detect anomalous API behavior patterns consistent with this type of exploitation attempt.