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Oracle Business Intelligence EUVDEUVD-2026-106800

| CVE-2026-91607 MEDIUM
Information Exposure (CWE-200)
2026-10-20 secalert_us@oracle.com GHSA-mj4r-3mc5-2jx9
4.3
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
    Authenticate with low-privilege account
  2. Exploit
    Send crafted HTTP request to Analytics Server
  3. Execution
    Bypass data access controls
  4. Impact
    Read unauthorized data subset

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Data exposure prevention
MITRE ATT&CK

2 techniques across 2 tactics: Collection, Discovery

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

Exploitation Conditions

Exploitation requires an attacker to already hold a low-privilege authenticated account on the targeted Oracle Business Intelligence Enterprise Edition instance (PR:L) and network reachability to the Analytics Server component over HTTP. Affected deployments are versions 8.2.0.0.0 and 26.01.0.0.0. No special non-default configuration is named in the description and no user interaction is required (UI:N), but the authentication requirement is the key limiting factor: an unauthenticated external attacker cannot exploit this, and impact is capped at read access to a subset of data (no write or service-disruption capability).

Impact

This is a moderate-to-low real-world priority despite being network-accessible. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N) scores 4.3 (Medium) and tells a consistent story: an attacker needs only low privileges (PR:L - a valid, authenticated low-level account on the Oracle BI EE instance) and HTTP network access, with low complexity and no user interaction, but the payoff is limited to unauthorized read access to a subset of accessible data (C:L, with no integrity or availability impact). No EPSS score was provided in the input, so exploitation probability cannot be quantified. There is no CISA KEV listing and no public exploit was identified at time of analysis, so there is no public exploit identified at time of analysis. The practical ceiling on this flaw is information disclosure of a partial dataset by an already-authenticated user - not code execution, not full data compromise, and not an unauthenticated breach. One signal conflict to note: the input Tags include 'Authentication Bypass,' but the CVSS vector and description explicitly require a low-privileged (already authenticated) attacker (PR:L), which directly contradicts an authentication-bypass characterization - verify the tag against Oracle's advisory. Overall this reads as a genuine but low-severity confidentiality issue appropriate for routine patching during Oracle's quarterly cycle rather than emergency response.

Exploit ScenarioDerived

A user holding a low-privilege account on an Oracle Business Intelligence Enterprise Edition instance sends crafted HTTP requests to the Analytics Server component to read a subset of data they should not be able to access. Low attack complexity and no required user interaction make the request repeatable, but the attacker must already be authenticated, and the impact is confined to reading a limited data subset. No public proof-of-concept exploit was identified in the provided data.

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 20, 2026

Authenticated low-privileged users can read a subset of Oracle Business Intelligence Enterprise Edition data they are not authorized to see in versions 8.2.0.0.0 and 26.01.0.0.0, through the Analytics Server component exposed over HTTP. The flaw is easily triggered once an attacker holds any valid low-privilege account (CVSS 3.1: AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N, base 4.3), and it grants no write, integrity, or availability impact. There is no public exploit identified at time of analysis and the issue is not listed in CISA KEV, so real-world priority is moderate-to-low and driven mainly by the population of low-privilege accounts on internet- or partner-reachable BI deployments.

RemediationAI

Apply the Oracle Critical Patch Update for October 2026 (https://www.oracle.com/security-alerts/cpuoct2026.html), which is the vendor-released advisory covering this defect; patched build numbers are not specified in the available data, so confirm the fixed 8.2.0.0.0 and 26.01.0.0.0 bundle versions against the advisory before closing the finding. Where patching must be staged, treat the authentication requirement as the primary compensating control: audit and prune low-privilege accounts, enforce least privilege and strong authentication on all BI users, and remove dormant or shared accounts, accepting that this reduces but does not eliminate exposure from legitimate users. Restrict network reachability to the Analytics Server HTTP interface using a reverse proxy or WAF with authenticated-user allowlists, or place the BI tier behind VPN/zero-trust access, at the cost of breaking direct client and mobile access until exceptions are defined. Tighten logging and alerting on anomalous catalog and report retrieval patterns by low-privilege users to catch attempted over-reads, though this is detective only and generates additional log volume.

Affected VersionsENISA

Oracle Business Intelligence Enterprise Edition 8.2.0.0.0
Oracle Business Intelligence Enterprise Edition 26.01.0.0.0

Affected Packages

euvd oracle_business_intelligence_enterprise_edition 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 affected component is the Analytics Server inside Oracle Business Intelligence Enterprise Edition, an enterprise BI platform whose presentation and analytics services are exposed over HTTP. The defect is an access-control weakness in the server's handling of requests from authenticated sessions: a user holding a low-privileged account can request objects or data sets beyond their intended authorization scope, resulting in read-only disclosure of a limited subset of BI content. No CWE identifier was assigned in the available data, but the observable behavior maps to the incorrect-authorization / improper-access-control class (CWE-863 and related exposure issues), where the server fails to enforce object-level permission checks rather than failing to authenticate the caller. The CVSS vector confirms the exploit path is network-based (AV:N), requires no user interaction (UI:N), and stays within the same security authority (S:U), with only confidentiality affected at low severity (C:L) - meaning the exposure is bounded and does not extend to modification or denial of service. Oracle's October 2026 Critical Patch Update advisory is the coordinating disclosure reference.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (oracle) PRIMARY 4.3 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
vuln.today AI 4.3 MEDIUM

Remote over HTTP (AV:N), low complexity (AC:L), requires an existing low-privilege account (PR:L), no user interaction; impact is limited partial data read only (C:L, I:N, A:N).

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/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
Low
Integrity
None
Availability
None

DescriptionCVE.org

Vulnerability in the Oracle Business Intelligence Enterprise Edition product of Oracle Analytics (component: Analytics Server). Supported versions that are affected are 8.2.0.0.0 and 26.01.0.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Business Intelligence Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle Business Intelligence Enterprise Edition accessible data. CVSS 3.1 Base Score 4.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).

Threat Intelligence Overview

EPSS Score
0.2%
Top 89% exploitable
Prevalence
Medium
enterprise Oracle analytics platform, common in large orgs but not everywhere
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

22
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +22
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

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