CVE-2026-46820: Oracle Financials Common Modules Vulnerability in E-Business Suite

CVE-2026-46820 affects the Oracle Financials Common Modules product within the Oracle E-Business Suite. The vulnerability resides in the Common Components and impacts supported versions 12.2.3 through 12.2.15. A low-privileged attacker with network access can exploit this flaw via HTTP, leading to a compromise of Oracle Financials Common Modules. While the vulnerability is within the Common Modules, successful attacks can significantly impact other E-Business Suite products by changing the scope of the access. This vulnerability allows an attacker unauthorized access to sensitive data and the ability to modify, insert, or delete specific data.

Attack Chain

1. The attacker gains network access to the Oracle E-Business Suite instance via HTTP.
2. The attacker authenticates to the Oracle E-Business Suite as a low-privileged user.
3. The attacker crafts a malicious HTTP request targeting a vulnerable endpoint within the Common Components of Oracle Financials.
4. The crafted request exploits the vulnerability, bypassing authorization checks.
5. The attacker gains unauthorized access to critical data within the Oracle Financials Common Modules.
6. The attacker uses the gained access to retrieve sensitive information.
7. The attacker modifies data within Oracle Financials Common Modules, such as updating account details.
8. The attacker potentially pivots to compromise other products within the E-Business Suite due to the scope change.

Impact

Successful exploitation of CVE-2026-46820 can lead to unauthorized access to critical data within Oracle Financials Common Modules, potentially affecting a large number of users and financial records. Attackers can read sensitive financial information and modify specific data, which can result in financial losses, regulatory penalties, and reputational damage. The potential scope change allows attacks to impact additional products integrated within the Oracle E-Business Suite.

Recommendation

• Apply the latest patches and updates for Oracle E-Business Suite 12.2.3-12.2.15 to remediate CVE-2026-46820, as indicated by the advisory.
• Monitor HTTP traffic to Oracle Financials Common Modules for suspicious activity, focusing on requests to Common Components, using the Sigma rule “Detect CVE-2026-46820 Exploitation Attempt via HTTP”.
• Implement stricter access controls and regularly review user privileges to minimize the impact of low-privileged accounts, referencing the vulnerability details in the overview.