XQuery Evaluation Vulnerability in Progress MarkLogic Server
CVE-2026-85955

9.9CRITICAL

Key Information:

Vendor

Progress Software
Status
Marklogic Server
Vendor
CVE Published:
12 October 2026

What is CVE-2026-85955?

A significant security flaw in Progress MarkLogic Server allows a remote attacker with access to execute queries to utilize an XQuery evaluation function without the necessary evaluation privilege. This oversight can lead to unauthorized server-side code execution with elevated permissions, potentially compromising system integrity and data security.

Affected Version(s)

MarkLogic Server 11.0.0 < 11.3.7

MarkLogic Server 12.0.0 < 12.1.0

References

https://community.progress.com/s/article/Marklogic-Critic...
vendor-advisory

CVSS V3.1

Score:
9.9
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.