CVE-2026-62480: Oracle E-Business Auth Bypass Flaw

CVE-2026-62480 Overview

CVE-2026-62480 is an access control vulnerability [CWE-284] in the Oracle Public Sector Financials product of Oracle E-Business Suite, specifically within the Internal Operations component. Supported versions 12.2.3 through 12.2.15 are affected. A low-privileged attacker with network access over HTTP can exploit this weakness to gain unauthorized read access to sensitive application data. The vulnerability affects confidentiality only, with no direct impact on integrity or availability. Oracle addressed the issue as part of its July 2026 Critical Patch Update.

Critical Impact
Successful exploitation grants unauthorized access to critical data or complete access to all Oracle Public Sector Financials accessible data.

Affected Products

Oracle E-Business Suite — Oracle Public Sector Financials, version 12.2.3
Oracle E-Business Suite — Oracle Public Sector Financials, versions 12.2.4 through 12.2.14
Oracle E-Business Suite — Oracle Public Sector Financials, version 12.2.15

Discovery Timeline

2026-07-21 - CVE-2026-62480 published to NVD
2026-07-22 - Last updated in NVD database

Technical Details for CVE-2026-62480

Vulnerability Analysis

The flaw resides in the Internal Operations component of Oracle Public Sector Financials, a module within Oracle E-Business Suite used by government and public sector organizations for financial management. The weakness maps to [CWE-284] Improper Access Control, indicating that authorization checks do not adequately restrict what an authenticated user can retrieve.

An authenticated user with low privileges can issue HTTP requests that bypass intended data access boundaries. The result is exposure of records the user is not authorized to view, up to all data reachable through the affected component. Because exploitation requires only standard network reachability to the application and a valid low-privileged account, the attack surface is broad in environments where E-Business Suite is exposed to internal users or partners.

The EPSS probability is 0.355% at the 28th percentile, and there is no confirmed public exploit or CISA KEV listing at the time of publication.

Root Cause

The root cause is improper enforcement of access control within the Internal Operations component. The application accepts requests from authenticated low-privileged users without validating whether the requested resource falls within the caller's authorization scope, producing a horizontal or vertical privilege boundary violation limited to data disclosure.

Attack Vector

Exploitation is performed over the network using HTTP against the Oracle E-Business Suite web tier. The attacker must hold valid, low-privileged credentials but does not require user interaction or elevated privileges. Because no verified proof-of-concept is available, technical exploitation details are not reproduced here. Refer to the Oracle Critical Patch Update July 2026 advisory for vendor-supplied details.

Detection Methods for CVE-2026-62480

Indicators of Compromise

Unusual volume of HTTP requests from low-privileged accounts to Oracle Public Sector Financials Internal Operations endpoints.
Access patterns where a single user account retrieves records spanning organizations, ledgers, or cost centers outside their assigned scope.
Anomalous session activity from service or shared accounts targeting /OA_HTML/ and related E-Business Suite URIs.

Detection Strategies

Review Oracle E-Business Suite application audit logs and FND_LOGIN_AUDIT_TRAIL for low-privileged users accessing Internal Operations functions.
Correlate HTTP access logs from the web tier with application-level authorization events to identify requests that succeed despite scope mismatches.
Baseline normal query patterns per role and alert on deviations, particularly bulk record retrieval by non-administrative accounts.

Monitoring Recommendations

Forward Oracle E-Business Suite audit logs, Apache/OHS access logs, and database audit records into a centralized SIEM for correlation.
Monitor for post-patch verification that the July 2026 CPU has been applied across all E-Business Suite instances.
Track authentication events for low-privileged accounts that suddenly interact with financial data outside their operational role.

How to Mitigate CVE-2026-62480

Immediate Actions Required

Apply the Oracle July 2026 Critical Patch Update to all Oracle E-Business Suite 12.2.3–12.2.15 environments.
Inventory all Oracle Public Sector Financials deployments and prioritize internet-facing or partner-accessible instances.
Audit low-privileged user accounts and revoke unnecessary access to the Internal Operations component.

Patch Information

Oracle released the fix in the July 2026 Critical Patch Update. Administrators should review the advisory at Oracle Critical Patch Update July 2026 and apply the patches applicable to their Oracle E-Business Suite version. Oracle recommends applying Critical Patch Updates without delay because unsupported and unpatched systems remain exposed to known issues.

Workarounds

Restrict network access to the E-Business Suite web tier using firewall rules or reverse proxy allow-lists until patching is complete.
Enforce least privilege by removing responsibilities that grant access to Internal Operations for users who do not require them.
Enable and closely monitor Oracle E-Business Suite Sign-On Audit and page access tracking to detect abuse while patching is scheduled.

bash

# Verify installed Oracle E-Business Suite patch level
sqlplus apps/<password> <<EOF
SELECT bug_number, last_update_date
  FROM ad_bugs
 WHERE bug_number IN ('<July2026_CPU_bug_id>')
 ORDER BY last_update_date DESC;
EOF