CVE-2026-87394 Oracle Outside In Technology - Unauthorized Data Access & Partial Denial of Service

Oracle Fusion Middleware Outside In Technology 8.5.8 contains an unauthenticated network access vulnerability via HTTP in Outside In Core, letting attackers access critical data and cause partial denial of service, exploit requires network access.

CVSS base score 8.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Unauthorized Data Access
Impact
Information Disclosure, Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
Published
20 October 2026
Updated
21 October 2026

Vendor fix

Update to the latest version of Oracle Outside In Technology.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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