CVE-2026-46821 - Oracle E-Business Suite Financials Common Modules Unauthorized Data Access

hello@craftedsignal.io — Thu, 28 May 2026 21:20:13 +0000

CVE-2026-46821 affects the Oracle Financials Common Modules product within Oracle E-Business Suite. The vulnerability resides in the Common Components and impacts supported versions from 12.2.3 through 12.2.15. A low privileged attacker with network access via HTTP can easily exploit this vulnerability. While the vulnerability exists in Oracle Financials Common Modules, successful attacks can significantly impact other products within the E-Business Suite environment, leading to unauthorized access to critical or all accessible data within Oracle Financials Common Modules. This vulnerability poses a significant risk to the confidentiality of sensitive financial data.

Attack Chain

The attacker gains network access to the target Oracle E-Business Suite environment via HTTP.
The attacker identifies a vulnerable endpoint within the Common Components of Oracle Financials Common Modules.
The attacker crafts a malicious HTTP request to exploit the CVE-2026-46821 vulnerability.
Due to insufficient access controls, the attacker bypasses authentication checks.
The attacker gains unauthorized access to sensitive data within the Oracle Financials Common Modules.
The attacker escalates privileges within the application due to the scope change impact.
The attacker accesses critical financial data, such as account balances, transaction history, or customer information.
The attacker may exfiltrate the compromised data or use it for further malicious activities within the E-Business Suite environment.

Impact

Successful exploitation of CVE-2026-46821 allows low-privileged attackers to gain unauthorized access to critical data within Oracle Financials Common Modules. Given the scope change, attacks can impact additional products in the E-Business Suite environment. The confidentiality of sensitive financial data is compromised, potentially leading to financial losses, reputational damage, and regulatory fines. The number of affected organizations depends on the adoption rate of the vulnerable E-Business Suite versions.

Recommendation

Apply the latest patches and updates provided by Oracle for the E-Business Suite to address CVE-2026-46821.
Implement network segmentation and access controls to limit the attack surface and prevent unauthorized network access as this is the initial attack vector.
Monitor HTTP traffic for suspicious requests targeting Oracle Financials Common Modules endpoints using a web application firewall (WAF) or intrusion detection system (IDS).
Deploy the Sigma rule "Detect CVE-2026-46821 Exploitation Attempt via HTTP Request" to identify exploitation attempts in web server logs.
Review and enforce the principle of least privilege to minimize the impact of successful exploitation by limiting the scope of accessible data.

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

hello@craftedsignal.io — Thu, 28 May 2026 21:20:00 +0000

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

The attacker gains network access to the Oracle E-Business Suite instance via HTTP.
The attacker authenticates to the Oracle E-Business Suite as a low-privileged user.
The attacker crafts a malicious HTTP request targeting a vulnerable endpoint within the Common Components of Oracle Financials.
The crafted request exploits the vulnerability, bypassing authorization checks.
The attacker gains unauthorized access to critical data within the Oracle Financials Common Modules.
The attacker uses the gained access to retrieve sensitive information.
The attacker modifies data within Oracle Financials Common Modules, such as updating account details.
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.

Financials - CraftedSignal Threat Feed

CVE-2026-46821 - Oracle E-Business Suite Financials Common Modules Unauthorized Data Access

Attack Chain

Impact

Recommendation

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

Attack Chain

Impact

Recommendation