---
id: "CVE-2026-91289"
kind: "vulnerability"
aliases: ["CVE-2026-91289"]
title: "Oracle JD Edwards EnterpriseOne Tools: Monitoring flaw exposes data to adjacent attackers"
severity: "medium"
cvss: 5.3
epss: 0.0018
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["enterpriseone", "jd-edwards", "on-prem", "oracle", "vendor"]
not_affected_if: ["isolated-network", "unaffected-release"]
published_at: "2026-10-20T22:20:30+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-2026-91289", "first_seen_at": "2026-10-23T21:57:26+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-91289", "first_seen_at": "2026-10-25T12:38:52+00:00"}]
---

# Oracle JD Edwards EnterpriseOne Tools: Monitoring flaw exposes data to adjacent attackers

Oracle JD Edwards EnterpriseOne Tools versions 9.2.0.0 through 9.2.26.5 contain a flaw in the Monitoring and Diagnostics component. An unauthenticated attacker on the physical network segment of the host can gain unauthorized read access to data the product can reach.

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

## How to check

- Confirm the EnterpriseOne Tools release installed on the server, in the range `9.2.0.0` to `9.2.26.5` is affected
- unknown

## Fix

- Apply the Oracle Critical Patch Update for JD Edwards EnterpriseOne Tools that addresses CVE-2026-91289; the sources do not name the fixed version
- unknown

## Timeline

- 2026-10-23T21:57:26+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-91289
- 2026-10-25T12:38:52+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-91289

## 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. Difficult to exploit vulnerability allows unauthenticated attacker with access to the physical communication segment attached to the hardware where the JD Edwards EnterpriseOne Tools executes to compromise JD Edwards EnterpriseOne Tools.  Successful attacks of this vulnerability can result in  unauthorized access to critical data or complete access to all JD Edwards EnterpriseOne Tools accessible data. CVSS 3.1 Base Score 5.3 (Confidentiality impacts).  CVSS Vector: (CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).

---

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