Oracle JD Edwards EnterpriseOne Tools: Privilege escalation in Monitoring and Diagnostics
Summary
Oracle JD Edwards EnterpriseOne Tools versions 9.2.0.0 through 9.2.26.5 contain a vulnerability in the Monitoring and Diagnostics SEC component. An attacker with a low-privileged account and network access via HTTP can, without user interaction, create, modify or delete critical data and access data accessible to the product. The CVSS vector assigns high confidentiality and integrity impact and no availability impact. Oracle's CVE record does not state a fixed version in this source set.
Affected
- Oracle JD Edwards EnterpriseOne Tools 9.2.0.0 to 9.2.26.5 (per CNA record)
Fixed in
- Unknown. Fixed in Oracle's October 2026 Critical Patch Update (released 20 October 2026); the exact patch or release for this CVE could not be verified.
Workaround
- No vendor workaround known.
- Interim measure (not vendor guidance): restrict HTTP access to the EnterpriseOne web tier to internal or VPN users only.
Exploitation
- Not listed in CISA KEV. EPSS below 1 percent.
- No public proof of concept found.
- CISA SSVC: exploitation none, automatable no, technical impact total.
Our recommendation
- Apply the October 2026 Oracle CPU and confirm the exact fixed build in Oracle's advisory before rollout.
- Check whether the EnterpriseOne web interface is reachable from the internet; if so, restrict it to VPN or internal access.
- Review low-privileged accounts and web-tier logs for unusual activity.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Oracle Critical Patch Update Advisory October 2026 www.oracle.com
- Vulners CVE record CVE-2026-91271 vulners.com
- OpenCVE CVE-2026-91271 app.opencve.io
- Strix CVE-2026-91271 www.strix.ai
- Waratek October 2026 CPU analysis 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, 18:16.
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 network access via HTTP to compromise JD Edwards EnterpriseOne Tools. 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 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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.
Affected? We can help.
We check whether your systems are affected, install updates and close the gap – continuously with the System Health Checker if you wish.