# CVE-2026-91370: Oracle Siebel CRM information disclosure in Cloud Manager

Source: https://junglewise.ai/threats/cve-2026-91370-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-2026-91370 · Severity: medium · CVSS 5.3 · Published 2026-10-20

Oracle Siebel CRM Cloud Applications is a customer relationship management platform used by enterprises to manage sales and customer data. An unauthenticated attacker on the network can read a subset of sensitive business data through an HTTP request to the Siebel Cloud Manager component, without needing to log in or interact with users.

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-2026-91370 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-91370 being exploited in the wild.

**How severe is CVE-2026-91370?** Medium severity, with a CVSS score of 5.3, 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-2026-91370?** 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-2026-91370 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-91370?** 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

An easily exploitable information disclosure vulnerability exists in Siebel Cloud Manager (a component of Siebel CRM Cloud Applications) that allows unauthenticated network access via HTTP to read restricted data. The flaw requires no authentication, low attack complexity, and no user interaction; successful exploitation grants unauthorized read access to a subset of application data. No mitigation or workaround details are available in the advisory.

## 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 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 privilege escalation in Cloud Manager](https://junglewise.ai/threats/cve-2026-91367-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)