CVE-2026-91431 Vulnerability in the Siebel CRM End User product of Oracle Siebel CRM (component: Open UI).

Medium 5.5 Published 20 Oct 2026 Updated 23 Oct 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2026-91431?

CVE-2026-91431 is a medium-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. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Siebel CRM End User executes to compromise Siebel CRM End User. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Siebel CRM End User accessible data. CVSS 3.1 Base Score 5.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).

Weakness: CWE-284

Which versions are affected by CVE-2026-91431?

How do I fix CVE-2026-91431?

No fix has been published for CVE-2026-91431 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-91431 being exploited?

There is no known exploitation of CVE-2026-91431 in the wild and no public exploit code.

Sources

Also known as GHSA-hhmr-6jjw-xxgx.