Is CVE-2026-83389 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-83389 being exploited in the wild.

How severe is CVE-2026-83389?

Medium severity, with a CVSS score of 5.4, published 20 October 2026.

Which products and versions are affected?

Oracle E-Business Suite HRMS (UK) 12.2.3-12.2.15.

Is there a fix for CVE-2026-83389?

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-2026-83389 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-83389?

Check whether you run Oracle E-Business Suite HRMS (UK) 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.

CVE-2026-83389: Oracle E-Business Suite HRMS (UK) authorization bypass in Internal Operations

CVE-2026-83389 · Severity: medium · CVSS 5.4 · Published 2026-10-20

Oracle E-Business Suite HRMS (UK) is a human resources management system used by enterprises to manage employee data and payroll. A vulnerability in the Internal Operations component allows a low-privileged authenticated user with network access to read, modify, or delete sensitive HR data without proper authorization, requiring a victim to interact with a malicious link. Successful exploitation could expose or alter confidential employee and payroll information across the organization.

Technologies: Oracle E-Business Suite HRMS (UK). Vendors: Oracle.

Quick answers

Is CVE-2026-83389 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-83389 being exploited in the wild.
How severe is CVE-2026-83389?: Medium severity, with a CVSS score of 5.4, published 20 October 2026.
Which products and versions are affected?: Oracle E-Business Suite HRMS (UK) 12.2.3-12.2.15.
Is there a fix for CVE-2026-83389?: 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-2026-83389 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-83389?: Check whether you run Oracle E-Business Suite HRMS (UK) 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 a cross-site request forgery or authorization bypass vulnerability in the Internal Operations component of Oracle HRMS (UK), accessible over HTTP. The attack requires low privilege network access and user interaction (UI:R), but achieves scope change, allowing unauthorized read and write access to HR data. The vulnerability affects versions 12.2.3 through 12.2.15 and impacts confidentiality and integrity of sensitive HR records.

Affected products

Oracle E-Business Suite HRMS (UK) 12.2.3-12.2.15

Timeline

2026-10-20: disclosed

References

https://www.oracle.com/security-alerts/cpuoct2026.html

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