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MarkLogic's REST document-patch API lets low-privileged users seize administrator control

Status: UPDATED  |  Advisory ID: CVE-2026-8709

Key Details

CVECVE-2026-8709
CVSS Score / Version9.9 (Critical) / CVSS v3.1
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS Proseattack vector is network; attack complexity is low; privileges required is low; user interaction is none; scope is changed; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected productsProgress marklogic_server
Classified asCWE-269 (Improper Privilege Management)
Exploitation prediction (EPSS)0.31% probability of exploitation in the next 30 days (24% percentile) -- FIRST.org's EPSS model.

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
Progressmarklogic_server
SubsystemsGeneral OT
SectorsMultiple

What to Know

An improper privilege management vulnerability in the REST API document patch operation of Progress MarkLogic Server before 11.3.6 and 12.0.3 allows an authenticated user with a low-privileged REST role to escalate privileges and execute privileged operations against the Security database.

What to Do

Monitor Progress's web page for any future patch releases. See vendor advisory link below.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-8709
Vendor advisoryhttps://community.progress.com/s/article/Marklogic-Critical-Security-Alert-Bulletin-August-2026