Vulnerability · Published Aug 5, 2026 · Assigned by ProgressSoftware

CVE-2026-9203Server-side request forgery in Progress MarkLogic Server

High 8.5

In plain English

A high-severity server-side request forgery in MarkLogic Server from Progress Software Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).

Severity (CVSS 3.1)8.5High

Exploit odds (30 days)0.3%top 72.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 (as reported)

Vendor	Product	Versions
Progress Software Corporation	MarkLogic Server	11.0.0 – before 11.3.612.0.0 – before 12.0.3

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

References

https://community.progress.com/s/article/Marklogic-Critical-Security-Alert-Bulletin-August-2026 vendor-advisory