CVE-2026-91391 Vulnerability in the Siebel CRM End User product of Oracle Siebel CRM (component: Open UI).

Low 3.7 Published 20 Oct 2026 Updated 21 Oct 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2026-91391?

CVE-2026-91391 is a low-severity vulnerability in Oracle Corporation Siebel CRM End User, published on 20 Oct 2026.

Official description

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. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM End User. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Siebel CRM End User accessible data. CVSS 3.1 Base Score 3.7 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N).

Weakness: CWE-200

Which versions are affected by CVE-2026-91391?

How do I fix CVE-2026-91391?

No fix has been published for CVE-2026-91391 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-91391 being exploited?

There is no known exploitation of CVE-2026-91391 in the wild and no public exploit code.

Sources

Also known as GHSA-32gg-jv26-gmvx.