---
id: "CVE-2026-91306"
kind: "vulnerability"
aliases: ["CVE-2026-91306"]
title: "Oracle JD Edwards EnterpriseOne Tools: local low-privilege takeover via installation security"
severity: "high"
cvss: 7.8
epss: 0.00118
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["enterpriseone", "jd-edwards", "on-prem", "oracle", "package", "self-hosted"]
not_affected_if: ["no-local-logon", "outside-version-range"]
published_at: "2026-10-20T22:20:32+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-2026-91306", "first_seen_at": "2026-10-23T21:57:26+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-91306", "first_seen_at": "2026-10-25T12:38:52+00:00"}]
---

# Oracle JD Edwards EnterpriseOne Tools: local low-privilege takeover via installation security

Oracle JD Edwards EnterpriseOne Tools versions 9.2.0.0 through 9.2.26.5 have a flaw in their Installation Security component. A low-privileged user with logon to the host where the tools run can take over the EnterpriseOne Tools installation.

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

## How to check

- Confirm the installed EnterpriseOne Tools release is in the range `9.2.0.0` to `9.2.26.5` using the vendor's version tooling
- Check the Oracle Critical Patch Update advisory for the patch level that covers this CVE-2026-91306 fix

## Fix

- Apply the Oracle Critical Patch Update for JD Edwards EnterpriseOne Tools that addresses CVE-2026-91306, moving past `9.2.26.5`
- Restrict OS logon on hosts running EnterpriseOne Tools to trusted accounts until patched

## Timeline

- 2026-10-23T21:57:26+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-91306
- 2026-10-25T12:38:52+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-91306

## 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 low privileged attacker with logon to the infrastructure where JD Edwards EnterpriseOne Tools executes to compromise JD Edwards EnterpriseOne Tools.  Successful attacks of this vulnerability can result in takeover of JD Edwards EnterpriseOne Tools. CVSS 3.1 Base Score 7.8 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

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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_