CVE-2026-91361

Analyzed Analyzed - Analysis Complete

Siebel CRM Cloud Applications Unauthorized Data Manipulation 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 update, insert or delete access to some of Siebel CRM Cloud Applications accessible data. CVSS 3.1 Base Score 5.3 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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-2026-91361

EUVD

EUVD-2026-106615

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-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This vulnerability affects Oracle Siebel CRM Cloud Applications versions 22.3 through 26.9. It allows an unauthenticated attacker to remotely access the system via HTTP and potentially modify data without permission. The impact is limited to data integrity, as the attacker can insert, update, or delete some accessible data.

Detection Guidance

This vulnerability is specific to Oracle Siebel CRM Cloud Applications and requires network-level detection. Monitor HTTP traffic for unauthorized data modification attempts targeting the Siebel Cloud Manager component. Check application logs for unusual update, insert, or delete operations on accessible data without authentication.

Impact Analysis

If exploited, this vulnerability could allow unauthorized changes to your Siebel CRM Cloud Applications data. This might lead to incorrect records, data loss, or corruption of critical business information. Attackers could manipulate customer or transaction data without detection.

Compliance Impact

This vulnerability allows unauthorized modification of data in Siebel CRM Cloud Applications, which could lead to unauthorized changes in personal or sensitive information. This may impact compliance with GDPR (data integrity requirements) and HIPAA (integrity and availability of protected health information).

Mitigation Strategies

Apply the latest security patches from Oracle for Siebel CRM Cloud Applications versions 22.3-26.9. Ensure network access to the component Siebel Cloud Manager is restricted via HTTP. Monitor for unauthorized data modifications in Siebel CRM Cloud Applications.

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