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JD Edwards EnterpriseOne Tools EUVDEUVD-2026-106524

| CVE-2026-91270 HIGH
Missing Authentication for Critical Function (CWE-306)
2026-10-20 secalert_us@oracle.com GHSA-4p2c-m3c8-8p36
8.8
CVSS 3.1 · Vendor: oracle
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Obtain low-privileged EnterpriseOne account
  2. Delivery
    Send crafted HTTP request to Monitoring/Diagnostics SEC
  3. Exploit
    Exploit server-side flaw
  4. Execution
    Escalate to full control
  5. Impact
    Take over EnterpriseOne Tools

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication required for critical functions
MITRE ATT&CK

1 technique across 1 tactic: Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires network access over HTTP to the JD Edwards EnterpriseOne Tools Monitoring and Diagnostics SEC component plus valid low-privileged credentials (CVSS PR:L) - it is NOT anonymous/unauthenticated. No user interaction is required (UI:N) and attack complexity is low (AC:L), so any authenticated low-tier user, a compromised service/user account, or an attacker who has already established a foothold can reliably trigger it against affected versions 9.2.0.0-9.2.26.5. The principal limiting factor is the authentication requirement; defenders can further reduce exposure by restricting network reachability of the EnterpriseOne Tools HTTP interface and tightening low-privilege account provisioning.

Impact

This is a genuine high-priority issue, though not a drop-everything emergency absent confirmed exploitation. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, base 8.8) describes an easily exploitable network-reachable flaw requiring only low privileges and no user interaction, yielding full compromise (confidentiality, integrity, and availability all High) of JD Edwards EnterpriseOne Tools. The one meaningful mitigating signal is PR:L - an attacker needs valid low-privileged credentials, so this is not a fully anonymous internet-facing bug; it is primarily a threat from authenticated users, compromised low-tier accounts, or an attacker who has already gained a foothold. No EPSS score, SSVC decision, KEV listing, or POC was provided in the input, so the exploitation-probability and automatability signals are simply absent rather than low - treat them as unknown, not reassuring. There is no conflict between the CVSS vector and the description: both agree on network HTTP access by a low-privileged attacker resulting in product takeover. Given this is an ERP platform holding financial and HR data, the realistic business impact of takeover is severe, which justifies prioritized patching via Oracle's October 2026 CPU even without confirmed in-the-wild activity.

Exploit ScenarioDerived

An attacker holding any low-privileged JD Edwards EnterpriseOne Tools account (or who has phished/reused such credentials) sends crafted HTTP requests to the Monitoring and Diagnostics SEC component. Because attack complexity is low and no user interaction is needed, the attacker escalates to full takeover of the EnterpriseOne Tools environment. No public exploit code was identified at time of analysis, so this scenario is inferred from the CVSS vector rather than a demonstrated PoC.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.4% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 20, 2026

Low-privileged authenticated users can achieve full takeover of Oracle JD Edwards EnterpriseOne Tools (versions 9.2.0.0 through 9.2.26.5) by sending crafted HTTP requests to the Monitoring and Diagnostics SEC component, gaining high impact across confidentiality, integrity, and availability (CVSS 3.1 base score 8.8). No user interaction or elevated privileges are required - only a valid low-tier account and network reachability to the EnterpriseOne Tools HTTP interface - making any compromised or over-provisioned service account a viable launch point. No public exploit code or confirmed active exploitation has been identified at time of analysis, but the low attack complexity and the pre-authentication-free path from a standard account to full compromise warrant prompt patching.

RemediationAI

Apply the Oracle Critical Patch Update referenced in the advisory (https://www.oracle.com/security-alerts/cpuoct2026.html), which provides the vendor-released fix for EnterpriseOne Tools; upgrade beyond the affected 9.2.0.0-9.2.26.5 range to the patched Tools release specified in that CPU. Until patching is complete, restrict network access to the EnterpriseOne Tools HTTP interface - place it behind a reverse proxy or WAF and limit source IPs to administrative networks - accepting the operational cost that legitimate remote monitoring clients must be re-homed or tunneled. Tighten low-privilege account provisioning: audit and disable unused or over-permissioned EnterpriseOne accounts, since exploitation requires only a valid low-tier login and no user interaction; the trade-off is reduced self-service access for business users. Additionally, segment the Tools layer from core ERP application servers so that a compromise of the diagnostics component cannot immediately reach business data, and monitor HTTP logs for anomalous requests to Monitoring and Diagnostics SEC endpoints as a compensating detection control.

Affected VersionsENISA

JD Edwards EnterpriseOne Tools 9.2.0.0 ≤9.2.26.5

Affected Packages

euvd jd_edwards_enterpriseone_tools no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The flaw resides in the Monitoring and Diagnostics SEC component of Oracle JD Edwards EnterpriseOne Tools, the Java-based middleware/management layer that sits beneath EnterpriseOne applications and exposes HTTP endpoints for monitoring, diagnostics, and security administration. The CVSS vector AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H describes a network-reachable, low-complexity weakness that a merely low-privileged user can exercise without any victim interaction, yielding complete loss of confidentiality, integrity, and availability within the unchanged scope of the Tools component - i.e., a vertical privilege escalation from a standard EnterpriseOne account to administrative control. Because the component handles diagnostic and security operations, insufficient authorization or input validation on those HTTP endpoints is the likely root-cause class, though Oracle does not publish a CWE mapping for this advisory. Successful exploitation amounts to takeover of the EnterpriseOne Tools layer, from which an attacker could pivot into the broader ERP environment.

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Severity by source

Vendor (oracle) PRIMARY 8.8 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vuln.today AI 8.8 HIGH

Network HTTP vector with low complexity and no user interaction, but Oracle states a low-privileged account is required so PR:L; takeover yields High confidentiality, integrity, and availability impact.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

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 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:L/UI:N/S:U/C:H/I:H/A:H).

Executive ViewAI

Why It Matters

Oracle JD Edwards EnterpriseOne Tools versions 9.2.0.0 through 9.2.26.5 contain a high-severity flaw (CVSS 8.8) that allows a low-privileged account to achieve full system takeover via crafted HTTP requests to the Monitoring and Diagnostics SEC component. Because exploitation requires only a valid low-tier account and network reachability-not user interaction or elevated privileges-any compromised or over-provisioned service account could expose the ERP platform to data compromise and operational disruption. Leadership should prioritize containment and monitoring while awaiting a vendor fix.

Business Impact: High
Compensating Controls

Restrict network access to the Monitoring and Diagnostics SEC component to trusted management subnets; enforce least privilege and monitor low-tier service accounts; deploy WAF or virtual patching rules to block crafted HTTP requests; segment affected Oracle JD Edwards EnterpriseOne Tools instances; enable detailed logging and alerting; conduct regular compromise assessments until a vendor patch is released. No public exploit identified at time of analysis, but these controls reduce exposure.

Threat Intelligence Overview

EPSS Score
0.4%
Top 62% exploitable
Prevalence
Medium
widely-used enterprise ERP but deployed in fewer environments than ubiquitous infrastructure
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.4%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
High

Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +44
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

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