# CVE-2026-83402: Oracle Identity Manager privilege escalation in OIM Legacy UI

Source: https://junglewise.ai/threats/cve-2026-83402-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-2026-83402 · Severity: high · CVSS 8.8 · Published 2026-10-20

Oracle Identity Manager is an identity and access management system used to manage user accounts and permissions across enterprise systems. This vulnerability in the Legacy UI component allows a low-privileged user with network access to gain full administrative control of the Identity Manager system, potentially enabling unauthorized access to critical identity data and system compromise. An attacker exploiting this flaw could takeover the entire Identity Manager infrastructure.

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

## Quick answers

**Is CVE-2026-83402 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-83402 being exploited in the wild.

**How severe is CVE-2026-83402?** 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-2026-83402?** 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-2026-83402 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-83402?** 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

A privilege escalation vulnerability in the OIM Legacy UI component allows a low-privileged authenticated attacker with network access via HTTPS to escalate privileges and compromise the Identity Manager. The vulnerability requires low privileges and network access but no user interaction, resulting in complete takeover of the system with high impact to confidentiality, integrity, and availability.

## Affected products

- Oracle Identity Manager 12.2.1.4.0, 14.1.2.1.0

## Timeline

- 2026-10-20: advisory

## 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 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)