CVE-2026-91371

Analyzed Analyzed - Analysis Complete

Siebel CRM Cloud Applications Unauthorized Data Read 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. While the vulnerability is in Siebel CRM Cloud Applications, attacks may significantly impact additional products (scope change). 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 5.8 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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

2026-11-09

NVD

CVE-2026-91371

EUVD

EUVD-2026-106625

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 (versions 22.3-26.9) where an unauthenticated attacker can remotely access the system via HTTP. It allows unauthorized read access to some data within the application. The impact is limited to confidentiality, with a CVSS score of 5.8 indicating low severity.

Detection Guidance

This vulnerability affects Oracle Siebel CRM Cloud Applications versions 22.3-26.9 and can be exploited via HTTP. Detection may involve checking for unauthorized access attempts or unusual data requests to the Siebel Cloud Manager component. No specific commands are provided in the context.

Impact Analysis

An attacker could exploit this to view sensitive data in Siebel CRM Cloud Applications. Since the scope may extend to other products, additional systems could be affected. However, the vulnerability does not allow modification or deletion of data.

Compliance Impact

This vulnerability could lead to unauthorized data access, potentially violating GDPR (data protection) and HIPAA (health data privacy) requirements. Organizations using affected versions must assess exposure and implement mitigations to maintain compliance.

Mitigation Strategies

Apply the latest Oracle Siebel CRM Cloud Applications patches or updates for versions 22.3-26.9. Restrict network access to HTTP ports used by Siebel CRM Cloud Applications. Monitor for unauthorized access attempts or unusual data access patterns.

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