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JD Edwards EnterpriseOne EUVDEUVD-2026-106535

| CVE-2026-91281 MEDIUM
Improper Access Control (CWE-284)
2026-10-20 secalert_us@oracle.com GHSA-9p5x-cg7r-g5f2
6.1
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
    Craft malicious link to JDE Tools endpoint
  2. Delivery
    Deliver link to legitimate user
  3. Exploit
    Victim clicks, triggering injected content
  4. Execution
    Execute in victim's authenticated context
  5. Impact
    Read and modify accessible JDE data across scope boundary

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Access control enforcement
MITRE ATT&CK

1 technique across 1 tactic: Defense Evasion

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

Exploitation Conditions

Exploitation requires luring a human victim (a person other than the attacker, per the description) into interacting with attacker-supplied content via HTTP against the JD Edwards EnterpriseOne Tools web interface - the UI:R requirement is the primary limiting factor, meaning this cannot be exploited automatically or without a willing/tricked user. No attacker authentication is needed (PR:N, unauthenticated). Affected supported versions are 9.2.0.0 through 9.2.26.5. The scope change means successful exploitation can reach additional products beyond JD Edwards Tools itself. Impact is bounded to low confidentiality (read of a subset of data) and low integrity (unauthorized update/insert/delete to some data), with no availability impact.

Impact

This is a medium-severity (CVSS 3.1 base 6.1) issue in Oracle JD Edwards EnterpriseOne Tools that reads more like a priority-to-patch-on-schedule item than an emergency. The CVSS vector (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N) indicates network-reachable, low-complexity exploitation requiring no privileges, but critically requires user interaction (UI:R) from a victim other than the attacker, and produces only low confidentiality and low integrity impact with no availability impact - a signature consistent with a reflected cross-site-scripting / content-injection class flaw. The scope change (S:C) is the one elevating factor: attacks 'may significantly impact additional products,' which is why Oracle rates it 6.1 rather than lower. On exploitation signals: no EPSS score was provided in the input, the CVE is NOT in CISA KEV, and no public POC is referenced - so there is no public exploit identified at time of analysis and no evidence of active exploitation. SSVC-style framing: exploitation is 'none' (no KEV/POC), it is NOT automatable (requires a human victim to interact), and technical impact is partial, so the realistic decision is routine remediation, not immediate crisis response. Note a metadata conflict: the input tag 'Authentication Bypass' is inconsistent with both the description (which describes no authentication bypass) and the CVSS vector (which describes victim-interaction, low-partial-impact, scope-change behavior typical of XSS, not auth bypass) - treat the tag as unreliable and verify the true weakness via the Oracle CPU advisory.

Exploit ScenarioDerived

An unauthenticated attacker crafts a malicious HTTP link or request targeting the JD Edwards EnterpriseOne Tools web interface and lures a legitimate user (for example an authenticated operator) into clicking it. When the victim interacts, injected content executes in their session context, allowing limited unauthorized read of some JD Edwards data and limited unauthorized update/insert/delete, with the scope change potentially carrying impact into additional connected products. No public exploit code is referenced at time of analysis.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 21, 2026

Unauthenticated, user-assisted attacks against the JD Edwards EnterpriseOne Tools web interface (supported versions 9.2.0.0 through 9.2.26.5) let a remote attacker lure a victim into interacting with attacker-supplied HTTP content, yielding low-impact read and write access to a subset of application data, with scope change extending the impact to additional connected products. Oracle scores this 6.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N) - the UI:R requirement for a tricked human victim is the main limiting factor, so it cannot be triggered automatically. No public exploit code and no CISA KEV entry are identified at time of analysis, and no EPSS data was supplied; treat this as a schedule-the-patch item rather than an emergency.

RemediationAI

Apply the Oracle October 2026 Critical Patch Update (https://www.oracle.com/security-alerts/cpuoct2026.html), which is the vendor-released fix for CVE-2026-91281; the supplied data does not enumerate a post-fix EnterpriseOne Tools build number, so confirm the minimum patched release and any one-off patches against the CPU advisory and My Oracle Support before closing. If the CPU cannot be applied on schedule, reduce exposure with compensating controls: restrict network access to the EnterpriseOne HTML/web interface to trusted users and networks via firewall segmentation or a reverse proxy with allow-lists (side effect: remote and mobile access must be re-engineered), enforce phishing-resistant MFA and targeted user awareness for EnterpriseOne users given the UI:R requirement (side effect: user friction and helpdesk load, and this does not fix the underlying flaw), and filter inbound mail/web content that directs users to crafted EnterpriseOne URLs (side effect: false positives). Monitoring for anomalous update/insert/delete activity and unusual HTTP requests against the EnterpriseOne SEC endpoints provides detection coverage while patching is pending.

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 sits in the Enterprise Infrastructure SEC component of JD Edwards EnterpriseOne Tools, the security-related infrastructure layer that sits beneath the EnterpriseOne HTML/web client and its supporting services. Because the attack vector is HTTP with PR:N, a remote party with no credentials can reach the vulnerable surface over the network; however AC:L combined with UI:R means success depends on convincing a person other than the attacker to take an action on crafted content served or reflected through the EnterpriseOne web interface. The S:C scope change indicates the vulnerable component's privileges or trust boundaries can be leveraged against other products or components, which is why Oracle flagged potential impact beyond EnterpriseOne Tools itself. No CWE identifier was published, so the precise root-cause class (for example, improper neutralization of input during web page generation versus a session or trust-boundary weakness in the SEC layer) is not confirmed from available data. Impacts are bounded to low confidentiality (read of a subset of accessible data) and low integrity (unauthorized update, insert, or delete of some accessible data), with no availability impact.

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Severity by source

Vendor (oracle) PRIMARY 6.1 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
vuln.today AI 6.1 MEDIUM

Network-reachable with no attacker auth (AV:N/PR:N) but needs a victim to interact (UI:R); low partial C/I and scope change (S:C) match a reflected-XSS-class flaw, no availability impact.

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

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

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

DescriptionCVE.org

Vulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Enterprise Infrastructure SEC). 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 and 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 update, insert or delete access to some of JD Edwards EnterpriseOne Tools accessible data as well as unauthorized read access to a subset of JD Edwards EnterpriseOne Tools accessible data. CVSS 3.1 Base Score 6.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).

Threat Intelligence Overview

EPSS Score
0.2%
Top 86% exploitable
Prevalence
Medium
enterprise ERP suite, substantial but specialized large-organization deployment
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 MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
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· derived
Medium

Priority Score

30
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +30
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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