# CVE-2026-83209: Oracle Siebel CRM Development authentication bypass in Workflow

Source: https://junglewise.ai/threats/cve-2026-83209-oracle-siebel-crm-development-authentication-bypass-in-workflow  
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-2026-83209 · Severity: high · CVSS 8.8 · Published 2026-09-15

Oracle Siebel CRM Development is a customer relationship management platform used by enterprises to manage business interactions and data. A vulnerability in the Workflow component allows a low-privileged network attacker to gain full control of the CRM system, potentially exposing sensitive customer and business data, disrupting operations, and compromising system integrity.

Technologies: [Oracle Siebel CRM Development](https://junglewise.ai/threats/technologies/siebel-crm-development). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-83209 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-83209 being exploited in the wild.

**How severe is CVE-2026-83209?** High severity, with a CVSS score of 8.8, published 15 September 2026.

**Which products and versions are affected?** Oracle Siebel CRM Development 17.0-26.7.

**Is there a fix for CVE-2026-83209?** 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-2026-83209 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-83209?** Check whether you run Oracle Siebel CRM Development 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

This is an easily exploitable vulnerability in the Workflow component of Oracle Siebel CRM Development that requires low-level privileges and network access via HTTP. The vulnerability allows an authenticated attacker with low privileges to achieve complete compromise of the CRM system, resulting in high-impact confidentiality, integrity, and availability violations. Affected versions include 17.0 through 26.7. Patch status and detailed remediation guidance should be obtained from Oracle security advisories.

## Affected products

- Oracle Siebel CRM Development 17.0-26.7

## 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 Development remote code execution in Integration Scripting](https://junglewise.ai/threats/cve-2026-91413-vulnerability-in-the-siebel-crm-development-product-of-oracle)
- [Oracle Siebel CRM Development authentication bypass in Approval Manager](https://junglewise.ai/threats/cve-2026-101495-vulnerability-in-the-siebel-crm-development-product-of-oracle)
- [Oracle Siebel CRM Development privilege escalation in Configuration Tools](https://junglewise.ai/threats/cve-2026-101456-vulnerability-in-the-siebel-crm-development-product-of-oracle)
- [Oracle Siebel CRM Development code injection in Integration Scripting](https://junglewise.ai/threats/cve-2026-101455-vulnerability-in-the-siebel-crm-development-product-of-oracle)
- [Oracle Siebel CRM Development privilege escalation in Configuration Tools](https://junglewise.ai/threats/cve-2026-101454-vulnerability-in-the-siebel-crm-development-product-of-oracle)