CVE-2026-46938: Oracle Cost Management Remote Compromise (CVSS 7.2)

Technical summary

CVE-2026-46938 is an improper access control vulnerability (CWE-284) in the Oracle Cost Management Cost Planning component. It requires high privilege credentials and network access via HTTP but no user interaction. The vulnerability results in unrestricted confidentiality, integrity, and availability impact within the affected component's scope. The CVSS 3.1 Base Score of 7.2 reflects the combination of high-privilege requirement (which limits exposure) and complete system compromise capability once that privilege threshold is met.

Business impact

Compromise of Oracle Cost Management directly impacts financial planning, cost allocation, and resource budgeting operations. Attackers gaining control can manipulate cost data, alter planning assumptions, extract sensitive financial information, or disrupt budget forecasting processes. Organizations relying on this system for procurement decisions and cost visibility face potential for fraudulent data manipulation and decision-making based on corrupted financial intelligence.

Affected systems

Oracle E-Business Suite Cost Management versions 12.2.3, 12.2.4, 12.2.5, 12.2.6, 12.2.7, 12.2.8, 12.2.9, 12.2.10, 12.2.11, 12.2.12, 12.2.13, 12.2.14, and 12.2.15 are affected. Organizations running Cost Planning functionality within this version range should immediately assess their environment. The vulnerability does not affect earlier or later versions outside the 12.2.3–12.2.15 range.

Exploitability

Exploitation requires the attacker to already hold high-privilege (administrative-level) credentials within the organization and have network connectivity to the Cost Management HTTP interface. While the vulnerability itself is easily exploitable once these prerequisites are met, the high-privilege requirement significantly limits the attack surface to insider threats or compromised administrative accounts. Public exploit code is not referenced in the vulnerability record.

Remediation

Apply vendor-provided security patches for Oracle Cost Management immediately. Consult the Oracle Critical Patch Update (CPU) advisory for June 2026 for exact patch versions applicable to your E-Business Suite release. Organizations unable to patch within acceptable timeframes should implement strict network access controls limiting HTTP connections to Cost Management to only authorized administrative users and systems, and enable enhanced logging on cost data modifications.

Patch guidance

Verify the applicable patch version for your specific E-Business Suite release level (12.2.3–12.2.15) in the Oracle June 2026 CPU advisory. Oracle typically provides patches through their support portal; plan patching during a scheduled maintenance window as E-Business Suite updates may require application downtime. Test patches in a non-production environment first, particularly given Cost Management's role in financial reporting. Establish a clear rollback plan. Organizations on extended support should confirm patch availability for their release before scheduling maintenance.

Detection guidance

Monitor HTTP request logs for unusual administrative access patterns to Cost Management modules, particularly from unexpected source IPs or during non-business hours. Enable Cost Planning application logging to capture data modification events and access attempts. Review database audit trails for changes to cost data, cost structures, or planning assumptions by administrative accounts. Baseline normal administrator behavior first to identify anomalies. Look for repeated failed authentication attempts followed by successful administrative logins, which may indicate credential compromise.

Why prioritize this

While the CVSS score of 7.2 is high, the requirement for pre-existing high-privilege credentials limits immediate external risk. However, this should be deprioritized only if you have strong confidence in your administrative account security posture and no indicators of compromise. Organizations with mixed security maturity, legacy access controls, or shared administrative accounts should treat this as critical. The financial data at stake in Cost Management makes insider threat vectors particularly damaging, elevating practical risk beyond the CVSS score.

Risk score, explained

The 7.2 CVSS score reflects the severe impact (complete confidentiality, integrity, and availability compromise) balanced against the high-privilege requirement that restricts attack surface. The CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H vector indicates network accessibility, low attack complexity, high privileges needed, no user interaction required, and unrestricted impact scope. The score should be considered a floor for risk assessment; organizations should apply local context (e.g., user privileged account hygiene, network segmentation, audit logging quality) to derive an organization-specific risk rating.

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