CVE-2026-91458: Input Validation
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).
Affected Software
Event History
Frequently Asked Questions
Who is exposed to this vulnerability?
Deployments running Oracle Outside In Technology version 8.5.8 are affected. Exploitation is local: the attacker needs access to the infrastructure where Outside In Technology executes.
Does exploitation require authentication or user interaction?
The attacker does not need product authentication, but must be able to log on to the host infrastructure. Exploitation also requires interaction by a person other than the attacker.
What is the potential impact of a successful attack?
A successful attack can result in takeover of Oracle Outside In Technology, affecting confidentiality, integrity, and availability.