Oracle JD Edwards EnterpriseOne Tools: Improper access control
Summary
A flaw in the Monitoring and Diagnostics SEC component of Oracle JD Edwards EnterpriseOne Tools allows an authenticated low-privileged user to compromise the product. An attacker with a logon on the infrastructure where the tools run can create, modify or delete critical data and access data accessible to the tools, and the impact can extend beyond JD Edwards. Exploitation requires no user interaction, but the attacker needs valid local access.
Affected
- Oracle JD Edwards EnterpriseOne Tools, supported versions 9.2.0.0 to 9.2.26.5
Fixed in
- Fixed in the Oracle Critical Patch Update of October 2026. The specific patch and minimum release for this CVE are unknown; check Oracle's documentation.
Workaround
Unknown. No vendor-documented workaround found; patching is the only confirmed fix.
Exploitation
- CISA SSVC: exploitation none, automatable no, technical impact total.
- Not listed in CISA KEV; EPSS below 1%.
- No public proof of concept found at time of research.
Our recommendation
- Confirm the installed EnterpriseOne Tools version and apply the October 2026 CPU patch, including the minimum patch level from Oracle.
- Patch JD Edwards Orchestrator in the same window if it is enabled, as it has more urgent October fixes.
- Review and reduce accounts with logon rights to JD Edwards servers.
- Monitor for updates, as the NVD analysis is still in progress.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Oracle Critical Patch Update October 2026 www.oracle.com
- OpenCVE CVE-2026-91266 app.opencve.io
- Strix CVE-2026-91266 www.strix.ai
- Vulners CVE-2026-91266 vulners.com
- VulDB 423851 vuldb.com
- Waratek: Oracle October 2026 CPU waratek.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 1 Nov 2026, 12:14.
Original description (NVD)
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. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where JD Edwards EnterpriseOne Tools executes to compromise JD Edwards EnterpriseOne Tools. While the vulnerability is in JD Edwards EnterpriseOne Tools, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all JD Edwards EnterpriseOne Tools accessible data as well as unauthorized access to critical data or complete access to all JD Edwards EnterpriseOne Tools accessible data. CVSS 3.1 Base Score 8.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N).
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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