CVE-2026-91359

Analyzed Analyzed - Analysis Complete

Siebel CRM Cloud Applications Information Disclosure Vulnerability

Publication date: 2026-10-20

Last updated on: 2026-11-04

Assigner: Oracle

Description

Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel CRM (component: Siebel Cloud Manager). Supported versions that are affected are 22.3-26.9. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM Cloud Applications. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Siebel CRM Cloud Applications accessible data. CVSS 3.1 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

CVSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-11-04

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-91359

EUVD

EUVD-2026-106613

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	siebel_crm	From 22.3 (inc) to 26.9 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-200	The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Siebel CRM Cloud Applications where an unauthenticated attacker can remotely access the system via HTTP. It allows unauthorized read access to some data within the application.

Detection Guidance

This vulnerability can be detected by checking for unauthorized access attempts to the Siebel CRM Cloud Applications via HTTP. Monitor network traffic for unusual requests targeting the affected component, Siebel Cloud Manager. Ensure your web application firewall or intrusion detection system is configured to alert on suspicious activity. No specific commands are provided in the context.

Impact Analysis

An attacker could exploit this to view sensitive data stored in the Siebel CRM Cloud Applications, potentially exposing confidential business or customer information.

Compliance Impact

This vulnerability could lead to unauthorized data access, violating compliance requirements for data protection such as GDPR or HIPAA, depending on the data exposed.

Mitigation Strategies

Apply the latest security patches provided by Oracle for Siebel CRM Cloud Applications versions 22.3-26.9. Ensure network access to the component Siebel Cloud Manager is restricted and monitored. Disable unnecessary HTTP access if possible.

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