---
id: "CVE-2026-91303"
kind: "vulnerability"
aliases: ["CVE-2026-91303"]
title: "Oracle JD Edwards EnterpriseOne Tools: installation flaw enables full takeover over HTTP"
severity: "high"
cvss: 8.8
epss: 0.00288
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["enterpriseone", "jd-edwards", "oracle", "package", "self-hosted", "vendor"]
not_affected_if: ["unknown", "version-outside-9.2.0.0-9.2.26.5"]
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-2026-91303", "first_seen_at": "2026-10-23T21:57:26+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-91303", "first_seen_at": "2026-10-25T12:38:52+00:00"}]
---

# Oracle JD Edwards EnterpriseOne Tools: installation flaw enables full takeover over HTTP

Oracle JD Edwards EnterpriseOne Tools versions 9.2.0.0 through 9.2.26.5 have an installation security flaw. An unauthenticated attacker on the network can take over the product if a person performs an action, such as opening a crafted link.

_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 9.2.0.0-9.2.26.5.

## Fix

Apply the Oracle Critical Patch Update for JD Edwards EnterpriseOne Tools (patch identifier unknown from sources).

## Timeline

- 2026-10-23T21:57:26+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-91303
- 2026-10-25T12:38:52+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-91303

## 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 HTTP to compromise JD Edwards EnterpriseOne Tools.  Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of JD Edwards EnterpriseOne Tools. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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_