CVE-2026-9203: Progress Marklogic Server

High severity, CVSS 8.5. EPSS: 0.3% chance of exploitation in the next 30 days.

A server-side request forgery vulnerability in Progress MarkLogic Server before 11.3.6 and 12.0.3 allows an authenticated user with low-privileged roles to bypass protections for cloud instance metadata endpoints. Successful exploitation can disclose cloud credentials and compromise cloud resources accessible to the host instance.

Affected products

• Progress Marklogic Server: before 11.3.6 (fixed in 11.3.6); from 12.0.0, before 12.0.3 (fixed in 12.0.3)

Published 2026-08-05. Last modified 2026-09-03.