CVE-2026-91432: Medium severity Oracle Siebel CRM End User vulnerability

Published Oct 20, 2026
·
Updated

Vulnerability in the Siebel CRM End User product of Oracle Siebel CRM (component: Open UI). Supported versions that are affected are 17.0-26.9. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM End User. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Siebel CRM End User accessible data as well as unauthorized read access to a subset of Siebel CRM End User accessible data. CVSS 3.1 Base Score 6.5 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N).

Affected Software

2 affected components
Oracle Siebel CRM End User>=17.0<=26.9
Oracle Siebel CRM>=17.0<=26.9

Event History

Oct 20, 2026
CVE Published
via MITRE·09:25 PM
Data Sourced
via MITRE·09:25 PM
DescriptionSeverity
Data Sourced
via NVD·10:20 PM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

Which deployments are exposed?

Oracle Siebel CRM End User deployments using the Open UI component are affected in supported versions 17.0 through 26.9. The vulnerability is reachable over HTTP.

2

Does exploitation require an account or user interaction?

No. An unauthenticated attacker with network access can exploit the issue, and no user interaction is required.

3

What could an attacker do after successful exploitation?

An attacker could gain unauthorized read access to a subset of accessible Siebel CRM End User data and unauthorized update, insert, or delete access to some accessible data.

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