Authentication Vulnerability in Oracle Fusion Middleware Outside In Technology
CVE-2026-91483

7.8HIGH

Key Information:

Vendor

Oracle
Status
Oracle Outside In Technology
Vendor
CVE Published:
20 October 2026

What is CVE-2026-91483?

An authentication vulnerability exists within the Oracle Outside In Technology component of Oracle Fusion Middleware, specifically affecting version 8.5.8. This flaw allows an unauthenticated attacker with access to the infrastructure where Oracle Outside In Technology operates to potentially take control of the technology. Successful exploitation requires human interaction from a user other than the attacker, making the threat landscape intricate. This vulnerability could lead to severe breaches affecting the confidentiality, integrity, and availability of systems relying on Oracle products.

Affected Version(s)

Oracle Outside In Technology 8.5.8

References

https://www.oracle.com/security-alerts/cpuoct2026.html
vendor-advisory

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.