---
id: "CVE-2026-91307"
kind: "vulnerability"
aliases: ["CVE-2026-91307"]
title: "Oracle JD Edwards EnterpriseOne Tools: unauthenticated network access to data"
severity: "high"
cvss: 7.5
epss: null
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["enterpriseone", "jd-edwards", "on-prem", "oracle", "vendor"]
not_affected_if: ["no-network-listener", "patched-release"]
published_at: "2026-10-20T22:20:32+00:00"
first_seen_at: "2026-10-23T21:57:26+00:00"
updated_at: "2026-10-25T03:18:34+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-91307", "first_seen_at": "2026-10-23T21:57:26+00:00"}]
---

# Oracle JD Edwards EnterpriseOne Tools: unauthenticated network access to data

Oracle JD Edwards EnterpriseOne Tools versions 9.2.0.0 through 9.2.26.5 have an Installation Security flaw. A remote, unauthenticated attacker with network access via Oracle Net can read critical data the product can reach.

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

## How to check

- Check the installed EnterpriseOne Tools release against the affected range `9.2.0.0` to `9.2.26.5`
- Confirm whether the Oracle Net listener is reachable from untrusted networks

## Fix

- Apply the Oracle Critical Patch Update for JD Edwards EnterpriseOne Tools (Installation Security) and move past `9.2.26.5`
- Restrict Oracle Net access to the EnterpriseOne Tools host to known networks until patched

## Timeline

- 2026-10-23T21:57:26+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-91307

## From the sources

Vulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Installation Security).  Supported versions that are affected are 9.2.0.0-9.2.26.5. Easily exploitable vulnerability allows unauthenticated attacker with network access via Oracle Net 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 7.5 (Confidentiality impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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_