CVE-2026-46927: Oracle Receivables Auth Bypass Vulnerability

CVE-2026-46927 Overview

CVE-2026-46927 affects the Internal Operations component of Oracle Receivables, part of Oracle E-Business Suite. The flaw allows an unauthenticated remote attacker with network access via Simple Object Access Protocol (SOAP) to compromise the application. Successful exploitation can result in full takeover of Oracle Receivables, impacting confidentiality, integrity, and availability. Oracle classifies the issue under improper access control [CWE-284]. Affected releases span supported versions 12.2.3 through 12.2.15.

Critical Impact
Unauthenticated network attackers can take over Oracle Receivables via SOAP, exposing financial data and disrupting accounts receivable operations.

Affected Products

Oracle E-Business Suite — Oracle Receivables 12.2.3
Oracle E-Business Suite — Oracle Receivables 12.2.4 through 12.2.14
Oracle E-Business Suite — Oracle Receivables 12.2.15

Discovery Timeline

2026-06-17 - CVE-2026-46927 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2026-46927

Vulnerability Analysis

The vulnerability resides in the Internal Operations component of Oracle Receivables within Oracle E-Business Suite. An attacker reaches the vulnerable code path by sending crafted SOAP requests over the network. No authentication is required, and no user interaction is needed to trigger the flaw. Oracle indicates exploitation is difficult, suggesting specific timing, configuration, or input conditions must be met. Successful exploitation yields full compromise of the Receivables module, including read, modification, and disruption of financial transaction data.

Root Cause

The root cause maps to improper access control [CWE-284] in the SOAP-exposed Internal Operations interface. The component fails to enforce required authorization checks before executing privileged operations on Receivables data. This permits unauthenticated callers to invoke functionality intended for trusted internal use.

Attack Vector

The attack vector is network-based against the SOAP endpoint exposed by Oracle E-Business Suite. An attacker crafts SOAP messages targeting the Internal Operations interface and submits them to the vulnerable host. Because the scope is unchanged and impacts are High across confidentiality, integrity, and availability, a single successful request can result in takeover of the Receivables application. Refer to the Oracle Security Alert June 2026 for protocol-level details.

Detection Methods for CVE-2026-46927

Indicators of Compromise

Unexpected SOAP requests directed at Oracle E-Business Suite Receivables endpoints from external or non-business sources.
Anomalous Internal Operations service invocations outside scheduled batch or integration windows.
New or modified Receivables records, payment routing data, or customer account changes lacking corresponding user session activity.
Application server logs showing SOAP requests without associated authenticated session identifiers.

Detection Strategies

Inspect HTTP/HTTPS traffic to Oracle E-Business Suite for SOAP envelopes invoking Internal Operations methods from unauthorized clients.
Correlate application server access logs with database audit logs to identify Receivables changes that lack a corresponding authenticated session.
Apply Web Application Firewall (WAF) rules that flag malformed or unauthenticated SOAP calls to E-Business Suite URLs.

Monitoring Recommendations

Enable Oracle E-Business Suite audit logging for the Receivables module and forward logs to a centralized analytics platform.
Monitor outbound connections from the E-Business Suite middle tier for signs of post-exploitation activity such as data exfiltration.
Alert on configuration or privilege changes within Oracle Receivables performed outside approved change windows.

How to Mitigate CVE-2026-46927

Immediate Actions Required

Apply the patches referenced in the Oracle Security Alert June 2026 to all Oracle E-Business Suite instances running Receivables 12.2.3 through 12.2.15.
Restrict network exposure of E-Business Suite SOAP endpoints to trusted networks and integration partners only.
Review Receivables audit logs for unauthorized changes since the vulnerable versions were deployed.

Patch Information

Oracle released fixes as part of the Oracle Security Alert June 2026. Administrators should consult the Oracle Security Alert June 2026 for the specific patch identifiers and prerequisites for affected E-Business Suite 12.2.x releases. Apply patches in a test environment before promoting to production.

Workarounds

Block external access to the Oracle E-Business Suite SOAP services at the perimeter firewall or reverse proxy until patches are applied.
Disable or restrict the Internal Operations SOAP endpoint where not required for business integrations.
Enforce mutual TLS or IP allow-listing on E-Business Suite web services to limit who can submit SOAP requests.

bash

# Configuration example: restrict SOAP access at the reverse proxy
# Example Apache httpd snippet placed in front of Oracle E-Business Suite
<Location "/webservices/SOAProvider/">
    Require ip 10.10.0.0/16
    Require ip 192.168.50.0/24
    # Deny all other sources
    Require all denied
</Location>