# CVE-2026-91407: Oracle Identity Manager remote code execution in REST WebServices

Source: https://junglewise.ai/threats/cve-2026-91407-vulnerability-in-the-oracle-identity-manager-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-2026-91407 · Severity: high · CVSS 8.8 · Published 2026-10-20

Oracle Identity Manager is a component of Oracle Fusion Middleware that manages user identities and access. A vulnerability in its REST WebServices interface allows a low-privileged network attacker to take over the entire Oracle Identity Manager system, potentially compromising user accounts and sensitive identity data across an organization.

Technologies: [Oracle Identity Manager](https://junglewise.ai/threats/technologies/oracle-identity-manager). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-91407 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-91407 being exploited in the wild.

**How severe is CVE-2026-91407?** High severity, with a CVSS score of 8.8, published 20 October 2026.

**Which products and versions are affected?** Oracle Identity Manager 12.2.1.4.0, 14.1.2.1.0.

**Is there a fix for CVE-2026-91407?** 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-2026-91407 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-91407?** Check whether you run Oracle Identity Manager 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 vulnerability exists in the Oracle Identity Manager REST WebServices component, allowing a low-privileged attacker with network access via HTTP to execute code and compromise the system. The attack requires only minimal attacker privilege level and no user interaction. Successful exploitation results in complete compromise including confidentiality, integrity, and availability impacts.

## Affected products

- Oracle Identity Manager 12.2.1.4.0, 14.1.2.1.0

## 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 Identity Manager privilege escalation in Installer](https://junglewise.ai/threats/cve-2026-91501-vulnerability-in-the-oracle-identity-manager-product-of-oracle)
- [Oracle Identity Manager unauthenticated remote code execution](https://junglewise.ai/threats/cve-2026-91408-vulnerability-in-the-oracle-identity-manager-product-of-oracle)
- [Oracle Identity Manager privilege escalation in Legacy UI](https://junglewise.ai/threats/cve-2026-91259-vulnerability-in-the-oracle-identity-manager-product-of-oracle)
- [Oracle Identity Manager arbitrary code execution in OIM Legacy UI](https://junglewise.ai/threats/cve-2026-83403-vulnerability-in-the-oracle-identity-manager-product-of-oracle)
- [Oracle Identity Manager privilege escalation in OIM Legacy UI](https://junglewise.ai/threats/cve-2026-83402-vulnerability-in-the-oracle-identity-manager-product-of-oracle)