CVE-2026-101646 in iSetup
Summary
by MITRE • 10/21/2026
Vulnerability in the Oracle iSetup product of Oracle E-Business Suite (component: General Ledger Update Transform, Reports). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle iSetup. Successful attacks of this vulnerability can result in takeover of Oracle iSetup. CVSS 3.1 Base Score 7.2 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).
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Analysis
by VulDB Data Team • 10/22/2026
The identified vulnerability resides within the Oracle iSetup component of Oracle E-Business Suite, specifically affecting the General Ledger Update Transform and Reports functionality across supported versions ranging from 12.2.3 to 12.2.15. This security flaw represents a critical risk for organizations relying on this enterprise resource planning platform, as it directly impacts the integrity and confidentiality of financial data processing workflows. The vulnerability is classified under CVSS version 3.1 with a base score of 7.2, indicating a high severity level that necessitates immediate attention from system administrators and security operations teams responsible for maintaining the integrity of these critical business applications.
From a technical perspective, the flaw allows an attacker who possesses network access via HTTP to exploit the vulnerability without requiring user interaction or complex preconditions beyond having valid credentials with high privileges. The core issue likely stems from insufficient validation or sanitization mechanisms within the General Ledger Update Transform module when processing specific inputs over web-based interfaces. This architectural weakness enables a high-privileged attacker to execute unauthorized operations that bypass standard security controls, leading to a complete compromise of the Oracle iSetup environment. Such an exploitation path aligns with common patterns found in server-side request forgery or insecure direct object reference scenarios where trusted administrative functions are manipulated through crafted HTTP requests.
The operational impact of this vulnerability is severe, as successful exploitation results in the full takeover of the Oracle iSetup application. This compromise grants the attacker extensive capabilities to manipulate financial records, alter general ledger configurations, and potentially exfiltrate sensitive corporate data. The CVSS vector components highlight that all three pillars of information security are affected: confidentiality is compromised through potential data leakage, integrity is undermined by unauthorized modifications to critical financial structures, and availability may be impacted if the exploitation leads to service disruption or system instability. For enterprises managing large-scale financial operations, such a breach could result in significant regulatory non-compliance, reputational damage, and substantial financial losses due to corrupted accounting records.
In terms of industry standard classifications, this vulnerability exhibits characteristics consistent with CWE-20 Improper Input Validation and potentially CWE-798 if it involves hardcoded credentials or excessive privilege usage within the application logic. From an adversarial tactics perspective, as defined by MITRE ATT&CK, this exploit facilitates lateral movement and credential access techniques where high privileges are leveraged to maintain persistence and control over critical infrastructure components. The network-based nature of the attack via HTTP suggests that it falls under initial access or privilege escalation vectors depending on whether the attacker is already inside the perimeter or exploiting external-facing services with valid administrative accounts.
Mitigation strategies must prioritize immediate patching through Oracle’s latest security updates, which address the underlying code defects in the General Ledger Update Transform module. Organizations should ensure they are running version 12.2.16 or later where these specific flaws have been remediated. In environments where patching is not immediately feasible due to operational constraints, implementing strict network segmentation and firewall rules can help restrict HTTP access to only authorized internal subnets. Additionally, enforcing multi-factor authentication for all high-privileged administrative accounts reduces the risk of credential theft that precedes exploitation. Continuous monitoring of web application firewalls for anomalous request patterns targeting iSetup endpoints can also provide an additional layer of defense against active attempts to exploit this vulnerability.