CVE-2026-9191: Insufficient isolation of user-supplied code in Progress MarkLogic Server
Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before 11.3.7 do not sufficiently isolate user-supplied code executed through certain REST and XDBC evaluation paths from HTTP request, response, and session state. An attacker able to execute code through an affected path could perform unauthorized actions or compromise an authenticated session.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Progress MarkLogic Serverto a version that resolves this vulnerability.Fixed in 12.1.0 - Upgrade
Upgrade
Progress MarkLogic Serverto a version that resolves this vulnerability.Fixed in 11.3.7
Event History
Frequently Asked Questions
Which deployments are affected?
Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before 11.3.7 are affected. The issue applies to certain REST and XDBC code-evaluation paths.
What does an attacker need to exploit this issue?
The attacker must be able to execute user-supplied code through an affected REST or XDBC evaluation path. No privileges are required according to the CVSS vector, but user interaction is required.
What could exploitation allow?
An attacker could access HTTP request, response, or session state that should be isolated from supplied code. This could enable unauthorized actions or compromise an authenticated session.