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Oracle Capacity EUVDEUVD-2026-105803

| CVE-2026-101387 HIGH
Improper Access Control (CWE-284)
2026-10-20 secalert_us@oracle.com GHSA-x9j3-q2cr-v2v4
7.6
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 EBS account
  2. Delivery
    Send crafted HTTP request to Oracle Capacity
  3. Exploit
    Exploit Internal Operations authorization flaw
  4. Execution
    Read all Capacity-accessible data
  5. Impact
    Perform limited writes or partial DoS

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 a valid low-privileged Oracle E-Business Suite account (PR:L) with network HTTP access to the Oracle Capacity product's Internal Operations component; affected deployments are EBS versions 12.2.3 through 12.2.15. No user interaction is needed (UI:N) and attack complexity is low (AC:L), so a reliable crafted HTTP request suffices once authenticated. The key limiting factor is the authentication requirement - this is NOT remotely exploitable by an anonymous attacker despite the mislabeled 'Authentication Bypass' tag - which confines the realistic threat to insiders or attackers who have already obtained EBS application credentials.

Impact

This is a credible mid-tier priority rather than a drop-everything emergency. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L, base 7.6) describes an easily exploitable, network-reachable flaw requiring only low-privilege authentication and no user interaction, with high confidentiality impact but only low integrity and availability impact. No EPSS score, no CISA KEV listing, and no public POC were provided, so there is no evidence of active or imminent mass exploitation - exploitation status is therefore 'no public exploit identified at time of analysis.' The dominant risk is data exposure: a low-privileged EBS user could read all data accessible to Oracle Capacity. A notable conflict exists in the metadata: the input carries an 'Authentication Bypass' tag, yet the CVSS vector specifies PR:L (authentication required), and the description explicitly says 'low privileged attacker' - these contradict each other, and the tag appears mislabeled; this vulnerability is NOT an unauthenticated bypass. Treat the real precondition as valid low-privileged EBS access, which materially narrows the attacker population compared to a pre-auth flaw.

Exploit ScenarioDerived

An attacker who already holds a low-privilege Oracle E-Business Suite application account sends a crafted HTTP request to the Oracle Capacity (Internal Operations) component over the network, with no user interaction required. Because exploitation is rated low-complexity, they can reliably read critical Capacity data outside their authorization and make limited unauthorized writes or trigger a partial denial of service. No public exploit code is known at the time of analysis, so this would currently require attacker-developed tooling.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 20, 2026

Oracle Capacity in Oracle E-Business Suite 12.2.3 through 12.2.15 lets a low-privileged authenticated user read critical data, make limited unauthorized data changes, and cause partial denial of service through crafted HTTP requests to the Internal Operations component. No public exploit was identified at time of analysis, and this is not an anonymous authentication bypass despite the supplied tag; the PR:L vector means attackers need valid EBS credentials. The practical risk is therefore highest for insider threats or attackers who have already compromised a low-privileged EBS account.

RemediationAI

Apply the Oracle Capacity fixes in Oracle's October 2026 Critical Patch Update (https://www.oracle.com/security-alerts/cpuoct2026.html); the provided data does not give an exact patched build number, so confirm the correct EBS 12.2.3-12.2.15 patch with Oracle Support and test before production rollout. If the Internal Operations functionality is not required for a user group, remove or restrict the associated responsibility/menu access, accepting the trade-off that legitimate business functions will be unavailable; otherwise, limit HTTP access to trusted network segments and enforce least privilege and strong authentication for EBS accounts. Because exploitation needs valid low-privileged credentials, prioritize credential hygiene, MFA where supported, review of dormant or excessive accounts, and monitoring for anomalous Capacity data access, updates, or partial-DoS behavior; these compensating controls reduce exposure but do not replace the vendor patch.

Affected VersionsENISA

Oracle Capacity 12.2.3 ≤12.2.15

Affected Packages

euvd oracle_capacity 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

Oracle Capacity is an E-Business Suite module, and the Internal Operations component is the HTTP-facing attack surface described by Oracle. The supplied CWE is N/A, so the precise defect class is undisclosed; the CVSS vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L) shows network-reachable, low-complexity exploitation that requires a valid low-privileged account and no user interaction, with high confidentiality, low integrity, and low availability impact. No CPE strings were provided, so affected-product scoping relies on Oracle's statement covering EBS 12.2.3-12.2.15. A supplied tag calls this an 'Authentication Bypass,' but the authoritative PR:L vector and assessment confirm authentication is required, so it should not be described as exploitable by anonymous users.

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Severity by source

Vendor (oracle) PRIMARY 7.6 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
vuln.today AI 7.6 HIGH

Network HTTP vector (AV:N), low complexity (AC:L), and a low-privileged EBS account required (PR:L) per the description; high confidentiality but only low integrity/availability impact as stated.

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

DescriptionCVE.org

Vulnerability in the Oracle Capacity product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Capacity. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Capacity accessible data as well as unauthorized update, insert or delete access to some of Oracle Capacity accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Capacity. CVSS 3.1 Base Score 7.6 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L).

Executive ViewAI

Why It Matters

Oracle E-Business Suite 12.2.3 through 12.2.15 instances using Oracle Capacity are exposed to a high-severity flaw in the Internal Operations component that lets a low-privileged authenticated user read critical data, make limited unauthorized changes, and cause partial denial of service. Because exploitation requires valid EBS credentials and no public exploit was identified at time of analysis, the near-term risk is concentrated in insider misuse or compromised low-privilege accounts rather than broad anonymous attack. Leadership should care because affected EBS deployments may hold sensitive business data, and the lack of a vendor-released patch leaves compensating controls as the immediate risk reducer.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis; interim controls include restricting Oracle Capacity/Internal Operations access to least-privilege authenticated users, removing shared and stale EBS accounts, enforcing strong authentication and credential rotation, enabling detailed audit logging and anomaly alerting for crafted HTTP requests, segmenting EBS network access, and monitoring for unauthorized data reads, changes, or partial denial-of-service conditions.

Threat Intelligence Overview

EPSS Score
0.3%
Top 76% exploitable
Prevalence
High
Oracle E-Business Suite is widely deployed enterprise ERP software
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 0.3%
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

38
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +38
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.

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

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