Denial of Service Vulnerability in Oracle Outside In Technology by Oracle
CVE-2026-87398

7.5HIGH

Key Information:

Vendor

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

What is CVE-2026-87398?

A vulnerability exists in Oracle Outside In Technology utilized within Oracle Fusion Middleware, specifically in version 8.5.8. This flaw allows an unauthenticated attacker with network access via HTTP to exploit the system. When successful, the attacker can induce a denial of service, leading to a complete hang or crash of Oracle Outside In Technology. This vulnerability poses a significant risk to service availability, and organizations using this product should address it promptly to mitigate potential disruptions.

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:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.