Oracle JD Edwards EnterpriseOne Tools: Improper access control allows takeover
Summary
Oracle JD Edwards EnterpriseOne Tools, component Installation Security, contains a flaw in access control (CWE-284). An unauthenticated attacker with network access over HTTP can take over the product, with high impact on confidentiality, integrity and availability. Successful attacks require an action by a user other than the attacker.
Affected
- Oracle JD Edwards EnterpriseOne Tools, supported versions 9.2.0.0 to 9.2.26.5
- Unknown whether other versions are affected.
Fixed in
- Unknown. No fixed version is confirmed in the sources reviewed.
- The October 2026 Critical Patch Update is reported to address this issue. Verify the exact patch in Oracle's advisory.
Workaround
- Unknown. The CVE record provides no workaround.
- Interim measure (not vendor-confirmed): restrict network access to the EnterpriseOne HTTP endpoints to known administrator and user networks, and remove direct internet exposure until the patch is applied.
Exploitation
- No evidence of exploitation in the wild found. The CVE is not listed in CISA KEV.
- CISA SSVC: exploitation none, automatable no, technical impact total.
- No public proof of concept found. EPSS is below 1%.
Our recommendation
- Check whether EnterpriseOne Tools 9.2.x is in use and whether its HTTP endpoints are reachable from the internet or from untrusted networks.
- Restrict access to these endpoints to necessary networks now.
- Apply the October 2026 Critical Patch Update as soon as it is validated, and confirm the fix in Oracle's advisory.
- Monitor web and access logs for unusual requests to the EnterpriseOne endpoints.
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
- OpenCVE: CVE-2026-91303 app.opencve.io
- Vulners: CVE-2026-91303 vulners.com
- Strix: CVE-2026-91303 www.strix.ai
- SmartTech247: Oracle October 2026 critical security patches www.smarttech247.com
- Waratek: Oracle October 2026 Critical Patch Update 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 31 Oct 2026, 11:31.
Original description (NVD)
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).
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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