# CVE-2026-91367: Oracle Siebel CRM Cloud Applications privilege escalation in Cloud Manager

Source: https://junglewise.ai/threats/cve-2026-91367-vulnerability-in-the-siebel-crm-cloud-applications-product-of  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-20. Updated: 2026-10-20  
License: CC BY 4.0 with a link back

CVE-2026-91367 · Severity: medium · CVSS 6.5 · Published 2026-10-20

Oracle Siebel CRM is a customer relationship management platform used by enterprises to manage sales, marketing, and customer service operations. A privilege escalation vulnerability in the Siebel Cloud Manager component allows a low-privileged user with local infrastructure access to gain unauthorized access to sensitive CRM data. Successful exploitation could expose confidential customer information and business-critical data stored within the CRM system.

Technologies: [Oracle Siebel CRM Cloud Applications](https://junglewise.ai/threats/technologies/siebel-crm-cloud-applications). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-91367 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-91367 being exploited in the wild.

**How severe is CVE-2026-91367?** Medium severity, with a CVSS score of 6.5, published 20 October 2026.

**Which products and versions are affected?** Oracle Siebel CRM Cloud Applications 22.3 through 26.9.

**Is there a fix for CVE-2026-91367?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-91367 attacked?** It is attacked with local access, in a hosted service.

**Am I affected by CVE-2026-91367?** Check whether you run Oracle Siebel CRM Cloud Applications at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is a local privilege escalation in Siebel Cloud Manager (component of Siebel CRM Cloud Applications versions 22.3–26.9) that allows an attacker with low-level credentials and local access to the infrastructure to escalate privileges and access sensitive data. The attack requires logon to the infrastructure and network adjacency, with no user interaction needed. Exploitation results in unauthorized access to all CRM data with scope change, potentially compromising additional connected products.

## Affected products

- Oracle Siebel CRM Cloud Applications 22.3 through 26.9

## Timeline

- 2026-10-20: disclosed

## References

- [https://www.oracle.com/security-alerts/cpuoct2026.html](https://www.oracle.com/security-alerts/cpuoct2026.html)

## Related threats

- [Oracle Siebel CRM information disclosure in Cloud Manager](https://junglewise.ai/threats/cve-2026-91371-vulnerability-in-the-siebel-crm-cloud-applications-product-of)
- [Oracle Siebel CRM information disclosure in Cloud Manager](https://junglewise.ai/threats/cve-2026-91370-vulnerability-in-the-siebel-crm-cloud-applications-product-of)
- [Oracle Siebel CRM data integrity tampering in Cloud Manager](https://junglewise.ai/threats/cve-2026-91369-vulnerability-in-the-siebel-crm-cloud-applications-product-of)
- [Oracle Siebel CRM unauthorized data access in Cloud Manager](https://junglewise.ai/threats/cve-2026-91368-vulnerability-in-the-siebel-crm-cloud-applications-product-of)
- [Oracle Siebel CRM Cloud Applications information disclosure and modification in Cloud Manager](https://junglewise.ai/threats/cve-2026-91366-vulnerability-in-the-siebel-crm-cloud-applications-product-of)