---
id: "CVE-2026-91266"
kind: "vulnerability"
aliases: ["CVE-2026-91266"]
title: "Oracle JD Edwards EnterpriseOne Tools: low-privileged logon can compromise data"
severity: "high"
cvss: 8.4
epss: 0.00149
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["enterpriseone", "infrastructure", "jd-edwards", "oracle", "self-hosted"]
not_affected_if: ["no-untrusted-local-logon", "patched-release"]
published_at: "2026-10-20T22:20:27+00:00"
first_seen_at: "2026-10-23T21:57:26+00:00"
updated_at: "2026-10-25T12:38:52+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-91266", "first_seen_at": "2026-10-23T21:57:26+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-91266", "first_seen_at": "2026-10-25T12:38:52+00:00"}]
---

# Oracle JD Edwards EnterpriseOne Tools: low-privileged logon can compromise data

Oracle JD Edwards EnterpriseOne Tools 9.2.0.0 through 9.2.26.5 has a flaw in its Monitoring and Diagnostics component. An attacker with a low-privileged logon to the host where the tools run can create, change or delete critical data and read data the product can access.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed EnterpriseOne Tools release against `9.2.0.0` through `9.2.26.5` in the Oracle advisory for your release
- unknown whether the sources name a specific file or setting to inspect

## Fix

- Apply the Oracle Critical Patch Update fix for JD Edwards EnterpriseOne Tools, moving past `9.2.26.5`
- unknown exact patched version in the sources

## Timeline

- 2026-10-23T21:57:26+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-91266
- 2026-10-25T12:38:52+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-91266

## From the sources

Vulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Monitoring and Diagnostics SEC).  Supported versions that are affected are 9.2.0.0-9.2.26.5. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where JD Edwards EnterpriseOne Tools executes to compromise JD Edwards EnterpriseOne Tools.  While the vulnerability is in JD Edwards EnterpriseOne Tools, attacks may significantly impact additional products (scope change).  Successful attacks of this vulnerability can result in  unauthorized creation, deletion or modification access to critical data or all JD Edwards EnterpriseOne Tools accessible data as well as  unauthorized access to critical data or complete access to all JD Edwards EnterpriseOne Tools accessible data. CVSS 3.1 Base Score 8.4 (Confidentiality and Integrity impacts).  CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N).

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_