by Kastro
Paper/Archive/CVE-2026-9191

CVE-2026-9191

Progress Software Corporation MarkLogic Server — Insufficient isolation of user-supplied code in Progress MarkLogic Server

EPSS 0.3%CVSS 9.6
critical.is priorityof 100
33
CVSS 9.6 (CNA)9.6 / 10 × 3028.8Not in CISA KEV+300.0EPSS percentile 20.1.201 × 204.0No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
MarkLogic Server11.0.0 – < 11.3.711.3.7CNA
MarkLogic Server12.0.0 – < 12.1.012.1.0CNA

Scores by source

ProgressSoftware (CNA)9.6CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

advisorycommunity.progress.com/s/article/Marklogic-Critical-Security-Alert-Bulletin-October-2026