CVE-2026-9191

Insufficient isolation of user-supplied code in Progress MarkLogic Server

State: Published
Severity: 9.6 Critical
Published: Oct 12, 2026
Updated: Oct 14, 2026
Reserved: May 21, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	9.6 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H	ProgressSoftware

Weaknesses

CWE-346 Origin Validation Error

Affected Products

Product	Versions
MarkLogic ServerProgress Software Corporation	11.0.0 to before 11.3.7Affected 12.0.0 to before 12.1.0Affected

References

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

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