CVE-2026-91378

Medium

Description

Vulnerability in the Siebel CRM Integration product of Oracle Siebel CRM (component: Open Integration). Supported versions that are affected are 25.12-26.9. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM Integration. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Siebel CRM Integration, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Siebel CRM Integration accessible data as well as unauthorized read access to a subset of Siebel CRM Integration accessible data. CVSS 3.1 Base Score 6.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).

SeverityMedium
CVSS6.1
Exploit probability—
ProductSiebel CRM Integration
PublishedOct 20, 2026
First seenOct 20, 2026

How to fix

Affected products

ProductAffected versionsFixed in
Oracle Corporation Siebel CRM Integration25.12 ≤ v ≤ 26.9—

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