CVE-2026-46826 Oracle Corporation CVE debrief

Who should care

Organizations running Oracle E-Business Suite Payroll versions 12.2.3-12.2.15, particularly those with externally accessible payroll systems or large user bases with low-privileged access. Finance and HR departments relying on Oracle Payroll for critical business operations face significant business continuity risk from potential system takeover

Technical summary

The vulnerability exists in the Internal Operations component of Oracle Payroll within Oracle E-Business Suite. A low-privileged attacker with HTTPS network access can exploit insufficient authorization checks to escalate privileges and gain complete control over the Oracle Payroll application. The attack requires no user interaction and can be executed remotely. Successful exploitation results in full compromise of the payroll system with high impact to data confidentiality, system integrity, and service availability. The flaw affects Oracle E-Business Suite versions 12.2.3 through 12.2.15

Defensive priority

critical

Recommended defensive actions

• Apply Oracle Critical Patch Update for May 2026 immediately to affected Oracle E-Business Suite Payroll installations
• Verify all Oracle Payroll instances running versions 12.2.3-12.2.15 are patched or upgraded
• Review and restrict network access to Oracle Payroll administrative interfaces to authorized personnel only
• Audit privileged account activity in Oracle Payroll systems for anomalous behavior prior to patching
• Implement network segmentation to limit exposure of Oracle E-Business Suite components
• Monitor Oracle security advisories for additional guidance on this vulnerability

Evidence notes

Oracle's official security advisory confirms affected versions and CVSS scoring. The vulnerability is classified as easily exploitable with low attack complexity, requiring only network access and low-privileged credentials. The CVSS vector (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) indicates network attack vector, low attack complexity, low privileges required, no user interaction, and high impacts across all three security dimensions

Official resources