# CVE-2026-101495: Oracle Siebel CRM Development authentication bypass in Approval Manager

Source: https://junglewise.ai/threats/cve-2026-101495-vulnerability-in-the-siebel-crm-development-product-of-oracle  
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-2026-101495 · Severity: high · CVSS 8.8 · Published 2026-10-20

Oracle Siebel CRM Development is a customer relationship management platform used to manage sales and business processes. This vulnerability in the Approval Manager component allows an unauthenticated attacker to take over the system via a network attack that requires tricking a user into clicking a malicious link. A successful attack could lead to complete compromise of the CRM system, including theft of customer data and business disruption.

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-2026-101495 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-101495 being exploited in the wild.

**How severe is CVE-2026-101495?** High severity, with a CVSS score of 8.8, published 20 October 2026.

**Which products and versions are affected?** Oracle Siebel CRM Development 17.0-26.9.

**Is there a fix for CVE-2026-101495?** 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-2026-101495 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-101495?** 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

An easily exploitable authentication bypass vulnerability exists in the Siebel Approval Manager component, accessible over HTTP without authentication. The attack vector requires user interaction (social engineering or phishing), but once triggered allows an unauthenticated attacker from the network to achieve full system compromise with high impact on confidentiality, integrity, and availability.

## Affected products

- Oracle Siebel CRM Development 17.0-26.9

## 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 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 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)
- [Oracle Siebel CRM Development privilege escalation in Workflow](https://junglewise.ai/threats/cve-2026-101447-vulnerability-in-the-siebel-crm-development-product-of-oracle)