Vulnerability in Oracle Outside In Technology Affects Oracle Fusion Middleware
CVE-2026-91341

9.1CRITICAL

Key Information:

Vendor

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

What is CVE-2026-91341?

An identified vulnerability in Oracle Outside In Technology within the Oracle Fusion Middleware poses significant security risks. This flaw allows an unauthenticated attacker with network access via HTTP to exploit the system. If successfully executed, the attacker can create, delete, or modify access to sensitive data, leading to potential data breaches. Furthermore, it can enable the attacker to induce a denial-of-service condition, causing the service to hang or crash repeatedly. Organizations using affected versions must take immediate steps to mitigate the risk associated with this vulnerability.

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:
9.1
Severity:
CRITICAL
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.