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Oracle IDM Connector EUVDEUVD-2026-106733

| CVE-2026-91488 HIGH
Improper Access Control (CWE-284)
2026-10-20 secalert_us@oracle.com GHSA-9mfj-5vrp-x7x9
7.1
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
    Obtain low-privileged logon to Connector host
  2. Exploit
    Invoke Generic REST component locally
  3. Execution
    Bypass access controls on identity data
  4. Impact
    Read or modify all Connector-accessible data

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

Requires the attacker to have an authenticated low-privileged account with logon access to the infrastructure/host where the Oracle Identity Manager Connector executes (AV:L, PR:L) - remote or unauthenticated exploitation is not possible per the vector. Exploitation targets the Generic REST component and affects Oracle Identity Manager Connector versions 12.2.1.4.0 and 14.1.2.1.0. Limiting factors that reduce real-world risk: the need for pre-existing local logon credentials and the local-only attack vector mean exposure is confined to users who can already reach the Connector host, so the practical blast radius depends on how many low-privileged accounts share that infrastructure.

Impact

The vendor-supplied CVSS 3.1 vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N, base 7.1) describes a locally exploitable flaw requiring the attacker to already have authenticated logon access (PR:L) to the infrastructure where the Oracle Identity Manager Connector runs - this is NOT a remote, network-reachable, or unauthenticated issue despite the 'Authentication Bypass' tag, which appears inconsistent with a PR:L vector and should be verified against Oracle's advisory. Low attack complexity (AC:L) and no user interaction (UI:N) make exploitation reliable once local access is obtained, with high confidentiality and integrity impact (C:H/I:H) but no availability impact (A:N). No EPSS score, no CISA KEV listing, and no public POC were provided in the input, so there is no public exploit identified at time of analysis and no evidence of active exploitation; this is a medium-high severity, authenticated-local issue rather than a mass-exploitable internet-facing emergency. Real priority is moderate: patch in normal Oracle CPU cycles and prioritize where many low-privileged users share the Connector host, but it does not warrant emergency out-of-band response on the data available.

Exploit ScenarioDerived

A low-privileged user who already has valid logon access to the server hosting the Oracle Identity Manager Connector (for example a developer, operator, or compromised service account) abuses the Generic REST component to read or modify identity data they should not be able to touch. Because attack complexity is low and no user interaction is needed, the attacker can reliably compromise all Connector-accessible data once local access is established. No public exploit code is identified at time of analysis.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 20, 2026

Oracle IDM Connector 12.2.1.4.0 and 14.1.2.1.0 contains a locally exploitable flaw in its Generic REST component that lets an attacker with an existing low-privileged logon on the connector host read, create, delete, or modify critical connector-accessible data (CVSS 3.1 base 7.1; C:H/I:H). The vector is AV:L/PR:L/UI:N, so exploitation is not remote or unauthenticated; the 'Authentication Bypass' tag is inconsistent with the PR:L requirement and should be verified against Oracle's advisory. No public exploit code or CISA KEV entry was identified at time of analysis.

RemediationAI

Apply the Oracle Critical Patch Update referenced at https://www.oracle.com/security-alerts/cpuoct2026.html for Oracle Identity Manager Connector 12.2.1.4.0 and 14.1.2.1.0; the input does not provide an exact patched build, so confirm the fixed version in the advisory before upgrading. Until patched, reduce exposure by restricting interactive logon and local access to the connector host to only required administrators and service accounts, removing unnecessary low-privileged accounts that share that infrastructure, and monitoring Generic REST connector configuration and data changes for unauthorized creation, deletion, or modification. These controls can disrupt legitimate administration and integration testing, so stage changes and maintain emergency-access procedures.

Affected VersionsENISA

Oracle Identity Manager Connector 14.1.2.1.0
Oracle Identity Manager Connector 12.2.1.4.0

Affected Packages

euvd oracle_identity_manager_connector 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 Identity Manager Connector is an Oracle Fusion Middleware integration component that uses connectors such as Generic REST to synchronize identity data with external REST endpoints. The provided data assigns no CWE, so the precise root-cause class is unconfirmed; the CVSS vector AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N indicates a local attack requiring low-privileged logon, no user interaction, and high confidentiality and integrity impact within the connector's scope. The 'Authentication Bypass' tag conflicts with the PR:L prerequisite and should not be read as allowing unauthenticated access. No CPE mappings were supplied, but the affected component is Generic REST in Oracle Identity Manager Connector 12.2.1.4.0 and 14.1.2.1.0.

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Severity by source

Vendor (oracle) PRIMARY 7.1 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
vuln.today AI 7.1 HIGH

Description specifies a low-privileged attacker with local logon (AV:L, PR:L), easy exploitation (AC:L), no UI, and high confidentiality/integrity but no availability impact.

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

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

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

DescriptionCVE.org

Vulnerability in the Oracle Identity Manager Connector product of Oracle Fusion Middleware (component: Generic REST). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Identity Manager Connector executes to compromise Oracle Identity Manager Connector. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Identity Manager Connector accessible data as well as unauthorized access to critical data or complete access to all Oracle Identity Manager Connector accessible data. CVSS 3.1 Base Score 7.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).

Executive ViewAI

Why It Matters

Oracle IDM Connector 12.2.1.4.0 and 14.1.2.1.0 contain a local privilege flaw that could let an attacker with a low-privileged host account read, modify, or delete critical connector-accessible data. Because exploitation requires local authenticated access, the primary organizational risk comes from broad or shared logon access to connector hosts rather than remote exposure. Leadership should prioritize reducing local account exposure and monitoring for unauthorized data changes until a vendor fix is released.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations include restricting local logon to connector hosts, enforcing least privilege and removing unnecessary local accounts, enabling detailed audit logging for the Generic REST component and connector-accessible data, monitoring for anomalous read/create/delete/modify activity, and segmenting connector hosts from broader network access.

Threat Intelligence Overview

EPSS Score
0.1%
Top 96% exploitable
Prevalence
Medium
enterprise Oracle IAM connector, common in large orgs but not ubiquitous
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 0.1%
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
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact
High

Priority Score

36
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +36
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

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