# CVE-2026-83078: Oracle Siebel CRM unauthorized access via HTTP in Cloud Manager

Source: https://junglewise.ai/threats/cve-2026-83078-oracle-siebel-crm-unauthorized-access-via-http-in-cloud-manager  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-15. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-83078 · Severity: high · CVSS 8.2 · Published 2026-09-15

Oracle Siebel CRM Cloud Applications, a customer relationship management platform used for enterprise sales and service operations, contains a vulnerability in its Cloud Manager component that allows remote attackers without credentials to gain unauthorized access via standard HTTP connections. Successful exploitation enables attackers to view, modify, or delete sensitive customer and business data stored within the CRM system without authentication, potentially exposing confidential customer information and disrupting critical business operations.

Technologies: [Oracle Siebel CRM](https://junglewise.ai/threats/technologies/siebel-crm), [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-2026-83078 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-83078 being exploited in the wild.

**How severe is CVE-2026-83078?** High severity, with a CVSS score of 8.2, published 15 September 2026.

**Which products and versions are affected?** Oracle Siebel CRM Cloud Applications 22.3-26.7.

**Is there a fix for CVE-2026-83078?** 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-2026-83078 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-83078?** Check whether you run Oracle Siebel CRM or 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 an easily exploitable authentication bypass or access control flaw in the Siebel Cloud Manager component of Oracle Siebel CRM Cloud Applications. The vulnerability is reachable over the network via HTTP and requires no authentication, credentials, or user interaction to exploit. An unauthenticated network attacker can achieve high-impact confidentiality compromise (read access to critical data) and limited integrity impact (unauthorized modification or deletion of some accessible data). Affected versions range from 22.3 through 26.7. As of the advisory date (September 2026), the vulnerability has not been reported as actively exploited in the wild.

## Affected products

- Oracle Siebel CRM Cloud Applications 22.3-26.7

## Timeline

- 2026-09-15: disclosed

## References

- [https://www.oracle.com/security-alerts/cspusep2026.html](https://www.oracle.com/security-alerts/cspusep2026.html)

## Related threats

- [Oracle Siebel CRM Deployment privilege escalation in Server Infrastructure](https://junglewise.ai/threats/cve-2026-91446-vulnerability-in-the-siebel-crm-deployment-product-of-oracle)
- [Oracle Siebel CRM Financial Accounts unauthorized data access](https://junglewise.ai/threats/cve-2026-91430-vulnerability-in-the-siebel-apps-financial-services-product-of)
- [Oracle Siebel CRM Server Infrastructure privilege escalation](https://junglewise.ai/threats/cve-2026-91423-vulnerability-in-the-siebel-crm-deployment-product-of-oracle)
- [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)