CVE-2026-101398 Oracle Corporation CVE debrief

Who should care

Oracle E-Business Suite administrators, security teams, and personnel with access to Oracle Capacity should be aware of this vulnerability and take necessary actions to prevent potential unauthorized access, data manipulation, and denial of service. They should review and apply Oracle's security patches for Oracle Capacity, restrict network access to Oracle Capacity to only necessary personnel, and monitor Oracle Capacity logs for suspicious activity.

Why it matters

CVE-2026-101398 is a high-severity vulnerability in Oracle Capacity that requires attention from Oracle E-Business Suite administrators and security teams to prevent potential unauthorized access, data manipulation, and denial of service.

• Potential unauthorized access to critical data
• Potential update, insert or delete access to some data
• Potential partial denial of service
• Verification of Oracle E-Business Suite inventory and patching

Technical summary

The vulnerability in Oracle Capacity allows a low-privileged attacker with network access via HTTP to compromise Oracle Capacity, potentially leading to unauthorized access to critical data, update, insert or delete access to some data, and partial denial of service. The CVSS 3.1 Base Score is 7.6, indicating a high severity vulnerability. The affected versions of Oracle Capacity are 12.2.3-12.2.15. The vulnerability requires attention from Oracle E-Business Suite administrators and security teams to prevent potential unauthorized access, data manipulation, and denial of service.

Defensive priority

High priority for Oracle E-Business Suite administrators and security teams

Recommended defensive actions

• Review and apply Oracle's security patches for Oracle Capacity
• Restrict network access to Oracle Capacity to only necessary personnel
• Monitor Oracle Capacity logs for suspicious activity
• Verify inventory of Oracle E-Business Suite products and versions
• Perform vulnerability scanning and penetration testing to identify potential vulnerabilities
• Implement compensating controls for exposed systems while remediation is scheduled and verified
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record and Oracle advisory provide details on the vulnerability, affected versions, and potential impacts. The vulnerability has a CVSS 3.1 Base Score of 7.6, indicating a high severity vulnerability. The affected versions of Oracle Capacity are 12.2.3-12.2.15. The CVE record was published on 2026-10-20T21:20:36.203Z and has not been modified since then.

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.