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CVE-2026-83254 – Remote Code Execution / Full System Compromise – Oracle Commerce Guided Search / Ex

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Summary

CVE-2026-83254 is a high-severity vulnerability in the Forge component of Oracle Commerce Guided Search / Oracle Commerce Experience Manager. It allows an unauthenticated attacker with network access via TCP to compromise the application, with the potential for complete takeover of the affected system. Oracle rates the flaw 8.1 (HIGH) and disclosed it in the September 2026 Critical Security Patch Update (CSPU).

Technical details

  • Root cause: The flaw resides in the Forge component of Oracle Commerce Guided Search / Oracle Commerce Experience Manager.
  • Trigger conditions: Oracle describes the issue as "difficult to exploit," indicating that successful exploitation requires specific, non-trivial conditions to be met (reflected in the High attack complexity rating).
  • Attack vector: Exploitable remotely over the network via TCP, without authentication and without any user interaction.
  • Impact: Successful exploitation can result in complete compromise of the affected application, with high impact to confidentiality, integrity, and availability.

Affected software

  • Oracle Commerce Guided Search / Oracle Commerce Experience Manager — version 11.4.0

Severity

  • CVSS v3.1 Base Score: 8.1 (High)
  • Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: Apply the patch provided by Oracle in the September 2026 Critical Security Patch Update (CSPU) for Oracle Commerce Guided Search / Oracle Commerce Experience Manager version 11.4.0.
  • If patching cannot be performed immediately: Restrict network access to the Forge component/Oracle Commerce Experience Manager interfaces to trusted hosts only, and monitor for anomalous TCP connections to the affected service until the patch can be applied. Oracle strongly recommends against delaying application of the CSPU fixes.

References

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