CVE-2026-60783: Oracle iReceivables Auth Bypass Flaw

CVE-2026-60783 Overview

CVE-2026-60783 affects the Oracle iReceivables product within Oracle E-Business Suite, specifically the AR Web Utilities component. Oracle disclosed the issue in the July 2026 Critical Patch Update. Supported versions 12.2.3 through 12.2.15 are affected.

A low-privileged attacker with network access over HTTP can exploit this vulnerability. Successful exploitation results in complete takeover of Oracle iReceivables, impacting confidentiality, integrity, and availability. Oracle rates the flaw as easily exploitable.

Critical Impact
Authenticated remote attackers can fully compromise Oracle iReceivables deployments running versions 12.2.3–12.2.15 through the AR Web Utilities component.

Affected Products

Oracle E-Business Suite — Oracle iReceivables 12.2.3 through 12.2.15
Component: AR Web Utilities
Deployments exposing iReceivables endpoints over HTTP/HTTPS

Discovery Timeline

2026-07-21 - CVE CVE-2026-60783 published to NVD
2026-07-21 - Last updated in NVD database
July 2026 - Oracle addresses the issue in the Oracle Critical Patch Update July 2026

Technical Details for CVE-2026-60783

Vulnerability Analysis

The vulnerability resides in the AR Web Utilities component of Oracle iReceivables, a customer-facing self-service application within Oracle E-Business Suite. Attackers reach the flaw over the network through HTTP requests to iReceivables endpoints. Oracle classifies it as easily exploitable and awards full impact across confidentiality, integrity, and availability.

Exploitation requires low-level authentication only. A basic iReceivables user account, which is often broadly provisioned in customer-facing accounts receivable deployments, is sufficient. There is no user interaction requirement, and the scope remains unchanged, meaning the attacker gains control of the iReceivables application context itself.

Oracle characterizes the outcome as full takeover of Oracle iReceivables. This aligns with a business-logic or input-handling flaw within AR Web Utilities that permits an authenticated user to escalate privileges or execute unauthorized operations against receivables data and workflows.

Root Cause

Oracle has not published root-cause details in the public advisory. The vulnerability sits inside AR Web Utilities, a helper module used by iReceivables web flows for HTTP-facing operations. See the Oracle Critical Patch Update July 2026 for vendor-supplied context.

Attack Vector

The attack vector is network based. An authenticated attacker sends crafted HTTP requests to the iReceivables application. No local access, adjacency, or victim interaction is required. Public-facing iReceivables portals are the highest-risk deployment pattern.

No verified public proof-of-concept code is available. The vulnerability mechanism should be understood in prose only until Oracle or independent researchers publish further technical detail. EPSS currently estimates a 0.447% exploitation probability.

Detection Methods for CVE-2026-60783

Indicators of Compromise

Unexpected HTTP POST or GET requests targeting iReceivables URLs referencing AR Web Utilities handlers from low-privileged accounts
Session activity where a standard iReceivables user performs administrative or cross-account receivables operations
Sudden growth in FND_LOG_MESSAGES or Apache access logs tied to iReceivables endpoints from a single session

Detection Strategies

Baseline normal iReceivables request patterns per user role and alert on deviations, particularly requests that modify accounts, payments, or invoices outside the user's scope
Correlate Oracle E-Business Suite audit records with web-tier access logs to identify authenticated abuse of AR Web Utilities endpoints
Deploy web application firewall rules to flag anomalous parameters submitted to iReceivables handlers

Monitoring Recommendations

Enable and centralize Oracle E-Business Suite Sign-On Audit and Page Access Tracking for iReceivables modules
Forward Apache/OHS access logs and database audit trails to a SIEM for long-term retention and correlation
Monitor for privilege changes and new responsibilities granted to iReceivables users following suspicious sessions

How to Mitigate CVE-2026-60783

Immediate Actions Required

Apply the July 2026 Oracle Critical Patch Update to all Oracle E-Business Suite 12.2.3–12.2.15 environments hosting iReceivables
Inventory internet-exposed iReceivables endpoints and restrict access to trusted networks where feasible until patching completes
Review and reduce iReceivables user provisioning, removing dormant or over-privileged accounts

Patch Information

Oracle addressed CVE-2026-60783 in the Oracle Critical Patch Update July 2026. Administrators should follow Oracle's documented patch application procedure for E-Business Suite 12.2, including running adop in hotpatch or online-patching mode against the affected environments. Validate patch application by confirming the fixed bug references in AD_BUGS after deployment.

Workarounds

Restrict HTTP access to iReceivables to authenticated corporate networks or VPN users where the business model allows
Enforce strong authentication and session controls on all iReceivables accounts, including MFA at the reverse-proxy or SSO layer
Enable Oracle E-Business Suite audit trails on iReceivables tables and responsibilities to shorten identification time until the patch is applied

bash

# Apply the July 2026 CPU using adop online patching (example)
$ source $EBS_APPS/APPS<CONTEXT>.env
$ adop phase=prepare
$ adop phase=apply patches=<CPU_JUL_2026_PATCH_ID> workers=8
$ adop phase=finalize,cutover,cleanup

# Verify the patch is registered
sqlplus apps/<pwd> <<EOF
SELECT bug_number, creation_date FROM ad_bugs WHERE bug_number = '<CPU_JUL_2026_PATCH_ID>';
EOF