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Oracle Business Intelligence EUVDEUVD-2026-106793

| CVE-2026-91582 LOW
Uncontrolled Resource Consumption (CWE-400)
2026-10-20 secalert_us@oracle.com GHSA-wf95-88f9-8h65
3.7
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
    Reach BI Search HTTP endpoint over network
  2. Exploit
    Send crafted request meeting complex preconditions
  3. Execution
    Trigger partial denial-of-service condition
  4. Impact
    Degraded availability of BI EE

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V2 - Validation and Business Logic Resource consumption limits
MITRE ATT&CK

1 technique across 1 tactic: Impact

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

Exploitation Conditions

Exploitation targets the BI Search component of Oracle Business Intelligence Enterprise Edition 12.2.1.4.0 specifically, reachable over HTTP by an unauthenticated network attacker (PR:N, UI:N per the CVSS vector). The key limiting factor is the high attack complexity (AC:H): Oracle explicitly labels this 'difficult to exploit,' indicating the attacker must satisfy conditions beyond their direct control - such as specific server state, timing, or race conditions - for the attempt to succeed. The impact is further limited to a partial denial of service (A:L) of the BI EE service, with no data exposure or modification. Only the stated version is confirmed affected; the HTTP-facing BI Search endpoint must be network-reachable to the attacker.

Impact

This is a low-priority, low-real-risk issue despite its network attack vector. The CVSS 3.1 base score is only 3.7 (Low), driven entirely by a partial availability impact (A:L) with no confidentiality or integrity impact (C:N/I:N). While the attack vector is network-based (AV:N) and requires no authentication (PR:N) or user interaction (UI:N), the high attack complexity (AC:H) - reflected in Oracle's own 'difficult to exploit' language - significantly constrains practical exploitation, typically requiring specific timing, race conditions, or non-trivial preconditions outside the attacker's control. No EPSS score, CISA KEV listing, or public POC is present in the provided data, so there is no evidence of exploitation probability or active abuse. The signals are internally consistent: a hard-to-exploit flaw causing only a partial denial of service in an enterprise analytics product. The worst realistic outcome is degraded or temporarily disrupted availability of the BI Search component, not full system compromise. EPSS, KEV, and POC data are all absent - their absence is expected for a freshly disclosed Oracle CPU item and is not itself a risk indicator.

Exploit ScenarioDerived

A remote, unauthenticated attacker sends specially crafted HTTP requests to the BI Search component of an internet- or network-reachable Oracle BI Enterprise Edition 12.2.1.4.0 instance, triggering a condition that degrades or partially interrupts service availability. Because the flaw is rated high-complexity, the attacker must reliably meet difficult preconditions (e.g., timing or resource-state dependencies) for the attempt to succeed. No public exploit code has been identified at time of analysis.

Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 20, 2026

A partial denial of service can be triggered in Oracle Business Intelligence Enterprise Edition 12.2.1.4.0 through the BI Search component, which is reachable over HTTP by an unauthenticated network attacker (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I/A:L, base score 3.7). Oracle characterizes the flaw as 'difficult to exploit,' meaning success depends on server-side conditions outside the attacker's direct control, and the only consequence is reduced availability of the BI service - there is no confidentiality or integrity impact. At time of analysis there is no public exploit identified, no CISA KEV listing, and no EPSS signal provided, so this is a low-priority availability nuisance rather than a realistic attack path; remediation is nonetheless available through Oracle's October 2026 Critical Patch Update advisory.

RemediationAI

Patch availability is per the vendor advisory: apply the Oracle October 2026 Critical Patch Update (https://www.oracle.com/security-alerts/cpuoct2026.html), which addresses BI Search in Oracle Business Intelligence Enterprise Edition 12.2.1.4.0 - no standalone fix version number was disclosed in the available data, so confirm the exact patch level against that advisory before scheduling the change. If the CPU cannot be applied immediately, reduce exposure by restricting network access to the BI Search endpoint to trusted user subnets and service accounts at the reverse proxy or firewall, accepting that legitimate search users outside those ranges lose functionality. Fronting the HTTP listener with a WAF or rate limiter that caps repeated search requests per client IP and per session lowers the chance of the state-dependent condition being hit, at the cost of some false positives on heavy reporting queries. Disabling or hiding search-based navigation in the BI presentation layer is a further stopgap but degrades user experience. Because the impact is limited to partial denial of service with no data exposure, prioritize this below exploited or data-compromising issues in the same CPU cycle.

Affected VersionsENISA

Oracle Business Intelligence Enterprise Edition 12.2.1.4.0

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 issue resides in the BI Search component of Oracle Analytics' Business Intelligence Enterprise Edition, an enterprise reporting and analytics platform whose search functionality is exposed over HTTP and typically reachable from the corporate network or, in weaker deployments, from the internet. Oracle's CPU disclosure assigns no CWE class, so the precise root cause is unpublished; the CVSS profile (AC:H with A:L only) points to a state- or timing-dependent condition in the BI Search request handling - for example a resource-consumption or race-condition path that only degrades service under specific server state - rather than a memory-safety or injection defect. The scope is unchanged (S:U), meaning only the BI EE service itself is affected, and the technical barrier is high enough that reliable exploitation is unlikely outside targeted, low-value disruption attempts. Only version 12.2.1.4.0 is confirmed affected; no CPE data was supplied, so product fingerprinting must rely on the vendor advisory and the EUVD record (EUVD-2026-106793).

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Severity by source

Vendor (oracle) PRIMARY 3.7 LOW
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
vuln.today AI 3.7 LOW

Network HTTP vector with no auth or interaction (AV:N/PR:N/UI:N), but vendor-confirmed 'difficult to exploit' gives AC:H; only partial availability impact (A:L), no C/I impact.

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

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

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

DescriptionCVE.org

Vulnerability in the Oracle Business Intelligence Enterprise Edition product of Oracle Analytics (component: BI Search). The supported version that is affected is 12.2.1.4.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Business Intelligence Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Business Intelligence Enterprise Edition. CVSS 3.1 Base Score 3.7 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L).

Threat Intelligence Overview

EPSS Score
0.2%
Top 85% exploitable
Prevalence
Medium
enterprise 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 LOW
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
LOW severity (CVSS 0.1-3.9)
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
Defer
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Low

Priority Score

18
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +18
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

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

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