# CVE-2026-83391: Oracle E-Business Suite HRMS US Payroll Year End unauthorized data access

Source: https://junglewise.ai/threats/cve-2026-83391-vulnerability-in-the-oracle-hrms-us-product-of-oracle-e-business  
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-2026-83391 · Severity: medium · CVSS 5.4 · Published 2026-10-20

Oracle E-Business Suite HRMS (US Payroll) is a human resources and payroll management system used by enterprises to process employee compensation and benefits. This vulnerability allows a low-privileged employee or contractor with network access to read, modify, or delete payroll and HR data through a cross-site request forgery-like attack that requires user interaction, potentially affecting payroll processing and employee records across connected systems.

Technologies: [Oracle E-Business Suite HRMS (US)](https://junglewise.ai/threats/technologies/e-business-suite-hrms-us). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-83391 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-83391 being exploited in the wild.

**How severe is CVE-2026-83391?** Medium severity, with a CVSS score of 5.4, published 20 October 2026.

**Which products and versions are affected?** Oracle E-Business Suite HRMS (US) 12.2.3 to 12.2.15.

**Is there a fix for CVE-2026-83391?** Yes: fixed in 12.2.16 and later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-83391 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-83391?** Check whether you run Oracle E-Business Suite HRMS (US) 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.

## How to fix

- Fixed in 12.2.16 and later

## Technical details

An easily exploitable vulnerability in the US Payroll Year End component of Oracle HRMS allows low-privileged users with network access via HTTP to gain unauthorized read and write access to HR data. The attack requires low privileges, network connectivity, and user interaction (social engineering), with a scope change indicating impact beyond the vulnerable component itself. A patch is available in versions 12.2.16 and later.

## Affected products

- Oracle E-Business Suite HRMS (US) 12.2.3 to 12.2.15

## Timeline

- 2026-10-20: disclosed

## References

- [https://www.oracle.com/security-alerts/cpuoct2026.html](https://www.oracle.com/security-alerts/cpuoct2026.html)

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