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CVE-2026-91458

7.8, high

Vulnerability in the Oracle Outside In Technology product of Oracle Fusion Middleware (component: Outside In Core)

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
7.8, high high CVSS v3.1
EPSS, next 30 days
n/a
Exploitation
No public evidence
Published
20 Oct 2026yesterday

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).

Details

Vendor
Oracle Corporation
Product
Oracle Outside In Technology
Weakness
n/a
Status
Received
Updated
20 Oct 2026
Assigner
secalert_us@oracle.com

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References 1

Advisories 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Oracle Corporation CVEs

Every Oracle Corporation CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-101420 Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: SQR) 9.6, critical
  • CVE-2026-101446 Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel CRM (component: Siebel Cloud Manager) 9.9, critical
  • CVE-2026-101484 Vulnerability in Oracle Secure Backup (component: Backup and Restore) 9.8, critical
  • CVE-2026-101499 Vulnerability in the Oracle WebCenter Sites product of Oracle Fusion Middleware (component: WebCenter Sites) 9.8, critical
  • CVE-2026-101501 Vulnerability in Oracle Trusted Answer Search (component: PLSQL package) 9.9, critical
  • CVE-2026-101503 Vulnerability in Oracle Trusted Answer Search (component: PLSQL package) 9.9, critical
  • CVE-2026-101521 Vulnerability in Oracle APEX (component: General) 9.8, critical
  • CVE-2026-101528 Vulnerability in the Oracle Enterprise Manager for Oracle Database product of Oracle Enterprise Manager (component: Data Guard Management) 9.9, critical

Beyond this page

Is CVE-2026-91458 in your network?

This page tells you how dangerous CVE-2026-91458 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2026-91458 comes with the devices to patch.

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  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 21 Oct 2026, not the live upstream state.