What is CVE-2026-85965?

CVE-2026-85965 is a high-severity vulnerability in Progress Software Corporation Marklogic Server, classified under Use After Free. CVSS score: 8.0/10. Published 2026-10-12.

How severe is CVE-2026-85965?

High severity. CVSS v3 base score is 8.0 out of 10.

Use After Free in Progress Software Corporation Marklogic Server

CVE-2026-85965

Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before 11.3.7 contain memory-safety defects in the JavaScript engine integration that could result in memory corruption, controlled process failure, or server instability.

Vulnerability class: Use-After-Free

Published 2026-10-12.

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Progress Software Corporation Marklogic Server

Weakness classification (CWE)

CWE-416 — Use After Free

References

community.progress.com/s/article/Marklogic-Critical-Security-Alert-Bulletin-Oct… (vendor-advisory)

Frequently asked questions

What is CVE-2026-85965?: CVE-2026-85965 is a high-severity vulnerability in Progress Software Corporation Marklogic Server, classified under Use After Free. CVSS score: 8.0/10. Published 2026-10-12.
How severe is CVE-2026-85965?: High severity. CVSS v3 base score is 8.0 out of 10.