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CriticalVulnerabilityCVE-2026-91299updated 25 Oct 2026, 18:50 UTC

Oracle JD Edwards EnterpriseOne Orchestrator: unauthenticated takeover over HTTP

Attackers on the network can reach a company's JD Edwards Orchestrator over the web without logging in and take control of it. From there they may be able to reach other connected systems.

Official, 2 sources
SeverityCriticalCVSS 10 of 10
Being exploited?UnclearNo reports either way yet
Fix available?UnclearNo fixed version published in the sources yet
How sure is this?Official, 2 sourcesBacked by an official source

How the attack works simplified

  1. 1Remote attackerNo login or account needed
  2. 2HTTP requestSent over the network to the Orchestrator
  3. 3Orchestrator flawSecurity component can be bypassed
  4. 4Full takeoverAttacker gains complete control
  5. 5Lateral reachScope change affects other products
  6. ResultAttacker controls Orchestrator and connected products

What happened

The E1 IOT Orchestrator Security component of Oracle JD Edwards EnterpriseOne Orchestrator has a flaw that lets an unauthenticated attacker with network access via HTTP fully compromise the product, with a scope change affecting other products.

Why it is dangerous: A successful attack gives full control over confidentiality, integrity and availability of the Orchestrator, and can spread to additional products. Organizations running JD Edwards EnterpriseOne Orchestrator with network exposure are at risk.

Are you affected?

You are affected if you run Oracle JD Edwards EnterpriseOne Orchestrator in versions 9.2.0.0 through 9.2.26.5 and it is reachable over HTTP from the network.

Oracle JD Edwards EnterpriseOne Orchestrator 9.2.0.0 through 9.2.26.5 (E1 IOT Orchestrator Security component)

What to do

  1. Check whether your JD Edwards EnterpriseOne Orchestrator version falls within 9.2.0.0 to 9.2.26.5
  2. Restrict network access to the Orchestrator so it is not reachable from untrusted networks
  3. Apply the security update from Oracle's Critical Patch Update or the vendor advisory once available

Timeline

  1. 20 Oct 2026, 22:20 UTC
    Publicly disclosed
  2. 20 Oct 2026, 22:20 UTC
    Reported by NVD · NVD
  3. 25 Oct 2026, 18:50 UTC
    GitHub Advisory reported on it · GitHub Advisory

Sources 2 reports, oldest first

Official vendor, government CERT or advisory database

Technical details

ID
CVE-2026-91299 · GHSA-hffg-22c9-m9ch
CVSS
10 / 10
EPSS
0.5% chance of exploitation within 30 days
Disclosed
20 Oct 2026, 22:20 UTC
On Zero Radar
before the radar started
Last change
25 Oct 2026, 18:50 UTC

The plain-language parts and the attack diagram were written by an AI model (anthropic/claude-haiku-5.5) from the sources above. Facts like versions, exploitation and dates come from the sources themselves. How Zero Radar works

Oracle JD Edwards EnterpriseOne Orchestrator: unauthenticated takeover over HTTP · Zero Radar