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