CVE-2026-62478 Overview
CVE-2026-62478 affects the Oracle Public Sector Financials product within Oracle E-Business Suite, specifically the Internal Operations component. The vulnerability impacts supported versions 12.2.3 through 12.2.15. A low-privileged attacker with network access over HTTP can exploit this flaw without user interaction. Successful exploitation results in full takeover of Oracle Public Sector Financials, compromising confidentiality, integrity, and availability. The issue is classified under CWE-269: Improper Privilege Management.
Critical Impact
An authenticated attacker with minimal privileges can achieve complete takeover of Oracle Public Sector Financials via crafted HTTP requests, exposing financial data and enabling unauthorized transactions.
Affected Products
- Oracle Public Sector Financials (Oracle E-Business Suite) version 12.2.3
- Oracle Public Sector Financials (Oracle E-Business Suite) versions 12.2.4 through 12.2.14
- Oracle Public Sector Financials (Oracle E-Business Suite) version 12.2.15
Discovery Timeline
- 2026-07-21 - CVE-2026-62478 published to NVD as part of the Oracle Critical Patch Update - July 2026
- 2026-07-22 - Last updated in NVD database
Technical Details for CVE-2026-62478
Vulnerability Analysis
The vulnerability resides in the Internal Operations component of Oracle Public Sector Financials. An attacker with low-privilege authenticated access to the application can send crafted HTTP requests that bypass authorization boundaries. The flaw allows the attacker to elevate privileges and execute operations reserved for administrative accounts.
Because Oracle Public Sector Financials handles budgetary, procurement, and accounting data for government entities, successful exploitation exposes sensitive financial records. The attacker can read, modify, and delete data across the module. Attackers can also disrupt operational availability by altering internal workflows.
The network attack surface and low complexity make this vulnerability practical to weaponize once an attacker obtains valid low-tier credentials, such as through phishing, credential stuffing, or reuse of leaked passwords.
Root Cause
The underlying weakness maps to CWE-269: Improper Privilege Management. The Internal Operations component fails to correctly enforce privilege separation between low-privileged users and administrative functions. Requests that should require elevated roles are processed without adequate authorization checks.
Attack Vector
Exploitation requires network access to the E-Business Suite HTTP endpoint and a valid low-privilege application account. The attacker submits crafted HTTP requests to endpoints exposed by the Internal Operations component. Because no user interaction is required, the attack can be fully automated against exposed deployments.
Oracle has not published exploitation details, and no public proof-of-concept code is available. Refer to the Oracle Security Alert - July 2026 for the vendor's technical guidance.
Detection Methods for CVE-2026-62478
Indicators of Compromise
- Unexpected privilege changes or new administrative role assignments within Oracle E-Business Suite audit tables.
- HTTP requests to Internal Operations endpoints originating from accounts that do not typically access those functions.
- Anomalous modifications to financial records, workflows, or approval chains outside normal business hours.
Detection Strategies
- Enable and review Oracle E-Business Suite Sign-On Audit and page access tracking for the Public Sector Financials module.
- Correlate authentication events with subsequent privileged operations to identify low-tier accounts performing administrative actions.
- Deploy web application firewall rules that flag requests to Internal Operations endpoints from non-administrative session contexts.
Monitoring Recommendations
- Forward E-Business Suite application, middle-tier, and database audit logs to a centralized SIEM for continuous analysis.
- Alert on failed authorization events followed shortly by successful privileged actions from the same session.
- Track outbound HTTP traffic patterns from the application tier to detect data exfiltration attempts after compromise.
How to Mitigate CVE-2026-62478
Immediate Actions Required
- Apply the July 2026 Oracle Critical Patch Update to all Oracle E-Business Suite 12.2.x deployments running Public Sector Financials.
- Restrict network access to E-Business Suite HTTP endpoints so only trusted management networks and authenticated corporate users can reach them.
- Audit all low-privileged accounts in Oracle E-Business Suite and disable dormant, shared, or unnecessary users.
- Enforce strong authentication, including multi-factor authentication for all interactive application users.
Patch Information
Oracle addressed CVE-2026-62478 in the July 2026 Critical Patch Update. Administrators should download and apply the patches listed in the Oracle Security Alert - July 2026 advisory. Oracle recommends applying Critical Patch Updates as soon as they are available because unpatched systems remain exposed to documented attacks.
Workarounds
- Place Oracle E-Business Suite behind a VPN or zero-trust network access gateway to limit exposure until patches are deployed.
- Temporarily restrict access to the Internal Operations pages within Public Sector Financials to a small set of trusted administrator accounts.
- Increase audit log verbosity and shorten session timeouts to reduce the window in which a compromised low-privilege account can be abused.
# Example: restrict HTTP access to E-Business Suite at the network layer
# Allow only the corporate management subnet to reach the EBS web tier
iptables -A INPUT -p tcp --dport 8000 -s 10.10.20.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 8000 -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
