CVE-2026-87393 Vulnerability in the Oracle Outside In Technology product of Oracle Fusion Middleware (component: Outside In Core).

Medium 6.5 Published Updated
Exploited in the wild
Not known
Fix
None listed

What is CVE-2026-87393?

CVE-2026-87393 is a medium-severity vulnerability in Oracle Outside In Technology, published on 20 Oct 2026.

Official description

Vulnerability in the Oracle Outside In Technology product of Oracle Fusion Middleware (component: Outside In Core). The supported version that is affected is 8.5.8. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Outside In Technology. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Outside In Technology. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H).

Weakness: CWE-284

Which versions are affected by CVE-2026-87393?

How do I fix CVE-2026-87393?

No fix has been published for CVE-2026-87393 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-87393 being exploited?

There is no known exploitation of CVE-2026-87393 in the wild and no public exploit code.

Sources

Also known as GHSA-m9rc-7hvj-rx4f.

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