CVE-2026-91466 Oracle Corporation CVE debrief

Who should care

Administrators and security teams responsible for PeopleSoft Enterprise FIN Common Objects Argentina deployments, particularly those with version 9.1, should assess exposure and prioritize remediation

Why it matters

CVE-2026-91466 is a medium-severity vulnerability in PeopleSoft Enterprise FIN Common Objects Argentina that requires attention from administrators and security teams to assess exposure and prioritize remediation, particularly for version 9.1 deployments.

• Potential unauthorized creation, deletion, or modification access to critical data
• Potential unauthorized access to critical data or complete access to all accessible data
• Potential partial denial of service (partial DOS)

Technical summary

The vulnerability exists in PeopleSoft Enterprise FIN Common Objects Argentina version 9.1 and allows high-privileged attackers with network access via HTTP to compromise the system. Successful attacks require human interaction and can result in unauthorized data access, modification, or deletion, as well as partial denial of service. The vulnerability has a CVSS score of 6.4, emphasizing the need for administrators and security teams to assess exposure and prioritize remediation, particularly for version 9.1 deployments.

Defensive priority

Assess exposure and prioritize remediation for PeopleSoft Enterprise FIN Common Objects Argentina version 9.1, focusing on restricting network access and ensuring human interaction is required for sensitive actions.

Recommended defensive actions

• Assess PeopleSoft Enterprise FIN Common Objects Argentina version 9.1 exposure and prioritize remediation
• Restrict network access to the system and ensure human interaction is required for sensitive actions
• Review Oracle's security alert documentation for further information and guidance
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, its impacts, and affected versions. Oracle's security alert documentation is referenced for further information. The vulnerability has a CVSS score of 6.4 and a CVSS vector of (CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:L). The PeopleSoft Enterprise FIN Common Objects Argentina product is affected, specifically version 9.1.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.