# CVE-2026-91408: Oracle Identity Manager unauthenticated remote code execution

Source: https://junglewise.ai/threats/cve-2026-91408-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-2026-91408 · Severity: critical · CVSS 9.8 · Published 2026-10-20

Oracle Identity Manager, which manages user identities and access across enterprise systems, contains an unauthenticated remote code execution vulnerability in its End User Self Service component. An attacker with network access can exploit this vulnerability without authentication to completely compromise the system, gaining full control and access to all protected data.

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

## Quick answers

**Is CVE-2026-91408 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-91408 being exploited in the wild.

**How severe is CVE-2026-91408?** Critical severity, with a CVSS score of 9.8, 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-2026-91408?** 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-2026-91408 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-91408?** 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 unauthenticated network-accessible vulnerability exists in the End User Self Service component of Oracle Identity Manager that allows remote code execution. The vulnerability is reachable via T3 and IIOP protocols without requiring authentication or user interaction. Successful exploitation results in complete takeover of the Identity Manager instance.

## 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 remote code execution in REST WebServices](https://junglewise.ai/threats/cve-2026-91407-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)