CVE-2026-91458 Vulnerability in the Oracle Outside In Technology product of Oracle Fusion Middleware (component: Outside In Core).
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-91458?
CVE-2026-91458 is a high-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 logon to the infrastructure where Oracle Outside In Technology executes 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 takeover of Oracle Outside In Technology. CVSS 3.1 Base Score 7.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
Weakness: CWE-20
Which versions are affected by CVE-2026-91458?
How do I fix CVE-2026-91458?
No fix has been published for CVE-2026-91458 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-91458 being exploited?
There is no known exploitation of CVE-2026-91458 in the wild and no public exploit code.
Sources
Also known as GHSA-4r9w-9978-45q5.