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Outside In Technology EUVDEUVD-2026-106600

| CVE-2026-91346 HIGH
Improper Input Validation (CWE-20)
2026-10-20 secalert_us@oracle.com GHSA-j88v-7ph4-wq6q
8.2
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 document file
  2. Delivery
    Deliver to victim over HTTP
  3. Exploit
    Victim process parses file with SDK
  4. Execution
    Trigger parsing flaw crossing scope
  5. Impact
    Access critical data and alter data

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V2 - Validation and Business Logic Input validation, allowlisting
Exploitation Conditions

Exploitation requires a victim (a person or automated process other than the attacker) to open or process an attacker-crafted document/file using an application that embeds the Oracle Outside In Clean Content SDK (version 8.5.8) - this UI:R requirement is the primary limiting factor. No authentication is required (PR:N) and the file can be delivered remotely over HTTP (AV:N), but the attack cannot fire without the victim-side parsing action, so purely autonomous mass exploitation is not possible. The scope change (S:C) means impact depends on the privileges and trust boundaries of the host product embedding the SDK.

Impact

This is a genuine high-severity issue (CVSS 8.2) but not a top-of-queue emergency on current signals. The CVSS vector is network-exploitable (AV:N) with low complexity (AC:L) and no privileges (PR:N), and the scope change (S:C) plus high confidentiality impact (C:H) drive the elevated score. The critical mitigating factor is UI:R - successful attacks require human interaction from a victim other than the attacker, which is consistent with Outside In being a document-parsing SDK where a user or server-side process must open/convert an attacker-supplied file. No EPSS score, KEV listing, or POC was provided in the input, so there is no public exploit identified at time of analysis and no evidence of active exploitation - this moderates real-world urgency relative to the raw score. A notable conflict: the input Tags label this 'Authentication Bypass', but the CVSS vector (UI:R, S:C, C:H/I:L) and the Oracle description describe a file-processing vulnerability, not an authentication bypass - treat the tag as suspect and verify with the Oracle CPU advisory. Overall: patch on a normal prioritized cycle; the UI:R requirement and absence of exploitation signals argue against treating it as an active threat, while the unauthenticated network reach and scope change argue against deferring it indefinitely.

Exploit ScenarioDerived

An attacker crafts a malicious document and delivers it over HTTP to a service or user whose application embeds the Oracle Outside In Clean Content SDK (e.g., a document-conversion or content-filtering pipeline). When the victim process parses the file, the flaw triggers, enabling unauthorized access to critical data and limited data modification, with impact extending into the embedding host product (scope change). No public exploit code was identified at time of analysis.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 20, 2026

Crafted-document processing in Oracle Outside In Technology 8.5.8 can let a remote unauthenticated attacker access or alter sensitive data when a victim opens or processes a malicious file in an application that embeds the Outside In Clean Content SDK. The CVSS 8.2 vector is AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N, so HTTP delivery needs no credentials but exploitation depends on victim-side parsing, and the scope change means the real impact tracks the privileges of the host product. No public exploit was identified at time of analysis, and no KEV entry is indicated.

RemediationAI

Consult Oracle's October 2026 Critical Patch Update at https://www.oracle.com/security-alerts/cpuoct2026.html for the fixed Outside In Technology release and upgrade from 8.5.8; the provided data does not specify an exact patched version, so verify the target version in the advisory before deployment. Until that update is applied, reduce exposure in applications that embed the Outside In Clean Content SDK by rejecting, quarantining, or converting untrusted documents only inside a low-privilege sandbox or container, and by restricting the service account's access to critical data so a scope-change impact cannot reach broader resources. These controls can break legitimate document workflows and do not replace the vendor fix; network blocking alone is insufficient because the attack is delivered over HTTP and triggered by document parsing.

Affected VersionsENISA

Oracle Outside In Technology 8.5.8

Affected Packages

euvd oracle_outside_in_technology 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 Outside In Technology provides document-viewing, conversion, and content-cleaning SDKs that third-party applications embed to parse files they did not create. The affected component is the Outside In Clean Content SDK in Oracle Fusion Middleware, and the assessed vector shows network delivery over HTTP (AV:N), low attack complexity (AC:L), no privileges required (PR:N), and a user-interaction prerequisite (UI:R) because the victim or an automated victim-side process must open or handle the crafted document. The scope change (S:C) reflects that the SDK is embedded inside other products, so the attacker's impact is bounded by the host application's permissions and trust boundary. The supplied data does not include a CWE or a precise root-cause class, so the exact parsing weakness cannot be attributed from the available record; the demonstrated impact is high confidentiality loss (C:H) and limited integrity modification (I:L), with no availability impact (A:N). The 'Authentication Bypass' tag should not be read as implying a separate login bypass, because the authoritative vector already encodes unauthenticated network access.

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Severity by source

Vendor (oracle) PRIMARY 8.2 HIGH
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
vuln.today AI 8.2 HIGH

File delivered remotely (AV:N) but must be opened by a victim (UI:R, PR:N); a parsing flaw in the SDK impacts the embedding host (S:C) with high confidentiality and limited integrity loss, no availability impact.

3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/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
High
Integrity
Low
Availability
None

DescriptionCVE.org

Vulnerability in the Oracle Outside In Technology product of Oracle Fusion Middleware (component: Outside In Clean Content SDK). The supported version that is affected is 8.5.8. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Outside In Technology. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Outside In Technology, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Outside In Technology accessible data as well as unauthorized update, insert or delete access to some of Oracle Outside In Technology accessible data. CVSS 3.1 Base Score 8.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N).

Executive ViewAI

Why It Matters

Oracle Outside In Technology 8.5.8, through the Outside In Clean Content SDK embedded in host applications, creates a high-severity data-exposure and integrity risk when a victim opens a crafted document. Leadership should care because business applications that rely on this SDK for content inspection, document conversion, or data-loss prevention could let an unauthenticated remote attacker access or alter sensitive data, although exploitation requires user interaction and no public exploit identified at time of analysis. No vendor-released patch identified at time of analysis, so exposure must be managed through interim controls until Oracle provides a fix.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations include restricting or disabling use of the Outside In Clean Content SDK for untrusted documents, blocking and quarantining risky file types at email and web gateways, applying sandboxing or content disarm and reconstruction before document processing, enforcing least privilege on applications that embed Outside In Technology 8.5.8, and monitoring for anomalous document-parsing activity.

Threat Intelligence Overview

EPSS Score
0.2%
Top 87% exploitable
Prevalence
Medium
document-parsing SDK embedded in various enterprise content products, not universal
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 0.2%
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

41
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +41
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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