Input Sanitization Flaw in Progress MarkLogic Server Products
CVE-2026-85976

5.4MEDIUM

Key Information:

Vendor

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

What is CVE-2026-85976?

Progress MarkLogic Server versions prior to 12.1.0 (12.x) and 11.3.7 (11.x) exhibit an input sanitization vulnerability in the Query Console file-exploration endpoint. This flaw allows attackers to exploit insufficient input validation, potentially leading to HTTP response splitting and unintended client-side response manipulation. Users are urged to update their systems to mitigate this risk and ensure the integrity of their applications.

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:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

backslash via Bugcrowd
.