What is CVE-2026-9203?

CVE-2026-9203 is a high-severity vulnerability in Progress Software Corporation Marklogic Server, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.5/10. Published 2026-08-05.

How severe is CVE-2026-9203?

High severity. CVSS v3 base score is 8.5 out of 10.

SSRF in Progress Software Corporation Marklogic Server

CVE-2026-9203

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 c…

Vulnerability class: SSRF (Server-Side Request Forgery)

CVSS v3 metric

CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Progress Software Corporation Marklogic Server — versions 11.0.0, 12.0.0

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

security@progress.com (vendor-advisory)

Frequently asked questions

What is CVE-2026-9203?: CVE-2026-9203 is a high-severity vulnerability in Progress Software Corporation Marklogic Server, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.5/10. Published 2026-08-05.
How severe is CVE-2026-9203?: High severity. CVSS v3 base score is 8.5 out of 10.