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CVE-2026-83023 – Unauthenticated Data Disclosure – Oracle Identity Manager Connector 12.2.1.4.0 and

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Summary

CVE-2026-83023 is a high-severity vulnerability in the Oracle Identity Manager Connector component of Oracle Fusion Middleware. It allows an unauthenticated attacker with network access via HTTP to compromise the Oracle Identity Manager Connector and gain unauthorized access to critical data, potentially reaching all data accessible to that component. Oracle rates the flaw 8.6 (High) under CVSS v3.1 and disclosed it as part of its September 2026 Critical Patch Update.

Technical details

  • Root cause: A flaw in the Core component of Oracle Identity Manager Connector that permits unauthorized data access without requiring credentials.
  • Attack vector: Exploitable remotely over HTTP with no authentication and no user interaction required.
  • Attack complexity: Low — Oracle describes the vulnerability as "easily exploitable."
  • Scope: Changed — Oracle notes that while the flaw resides in Oracle Identity Manager Connector, successful exploitation "may significantly impact additional products" beyond the vulnerable component itself.
  • Impact: Confidentiality impact is High; there is no impact to integrity or availability. Successful attacks can result in unauthorized access to critical data, up to complete access to all data accessible to the Oracle Identity Manager Connector.
  • Privileges required / user interaction: None — no prior authentication or victim interaction is needed to exploit the vulnerability.

Affected software

  • Oracle Identity Manager Connector (Oracle Fusion Middleware) version 12.2.1.4.0
  • Oracle Identity Manager Connector (Oracle Fusion Middleware) version 14.1.2.1.0

Severity

  • CVSS v3.1 Base Score: 8.6 (High)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Mitigation and recommended actions

  • Immediate: Apply the fix provided in Oracle’s September 2026 Critical Patch Update for Oracle Identity Manager Connector versions 12.2.1.4.0 and 14.1.2.1.0. Oracle strongly recommends applying Critical Patch Update fixes as soon as possible, as it does not provide advance notice of specific flaw details prior to release.
  • If immediate patching is not possible: Restrict and monitor network access to Oracle Identity Manager Connector interfaces (including HTTP-exposed endpoints) to trusted networks only, since the vulnerability is remotely exploitable over HTTP without authentication.
  • Ongoing: Verify patch application against Oracle’s official Critical Patch Update documentation and confirm the deployed version no longer matches the vulnerable 12.2.1.4.0 / 14.1.2.1.0 baselines.

References

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