CVE-2026-101543 in Capacity
Summary
by MITRE • 10/21/2026
Vulnerability in the Oracle Capacity product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affected are 12.2.3-12.2.15. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Capacity. Successful attacks of this vulnerability can result in takeover of Oracle Capacity. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/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 Internal Operations component of Oracle Capacity, a module integrated into the Oracle E-Business Suite platform. This security flaw affects multiple supported releases spanning from version 12.2.3 through to version 12.2.15. The nature of this defect is classified as difficult to exploit, which implies that while an attacker possesses the theoretical capability to leverage it, practical execution requires specific conditions or precise sequencing beyond simple automated scanning tools. Despite this complexity, the vulnerability permits a low-privileged attacker who has network access via HTTP to compromise the Oracle Capacity application environment. The severity of this issue is quantified by a CVSS 3.1 Base Score of 7.5, indicating a High level of risk due to its potential for significant impact on system security posture.
From a technical perspective, the flaw allows an attacker with low-level privileges and network connectivity over HTTP to achieve full takeover of Oracle Capacity. This outcome suggests that the vulnerability likely involves improper access control checks or insufficient validation of user inputs within the internal operations logic. When exploited successfully, it bypasses standard authentication mechanisms expected for lower-tier users, effectively elevating their permissions to those equivalent to an administrator or system owner. The attack vector is network-based and does not require any user interaction, meaning that once a vulnerable instance is exposed on a network, remote exploitation is feasible without social engineering prerequisites. This aligns with the ATT&CK technique of Remote Code Execution via Network Services, specifically targeting web applications where input validation fails to restrict unauthorized actions based on role-based access controls.
The operational impact of this vulnerability is severe, encompassing all three pillars of the CIA triad: Confidentiality, Integrity, and Availability. A successful exploitation leads to a complete takeover of Oracle Capacity, which grants the attacker unrestricted control over the application's data and functionality. In terms of confidentiality, sensitive business information processed or stored by Oracle Capacity can be exfiltrated without detection. Regarding integrity, an attacker could modify critical configuration settings, alter financial records, or inject malicious code into reports generated by the system. For availability, the compromise may lead to service disruption through resource exhaustion, deletion of essential data, or corruption of application states that render the module unusable for legitimate business operations. The CVSS vector components reflect this broad impact with high scores across confidentiality, integrity, and availability impacts, while maintaining a medium difficulty rating due to the specific conditions required for exploitation.
Mitigation strategies must address both immediate remediation and long-term security hardening. Oracle has likely released patches or updates that resolve the underlying code defect within the Internal Operations component; therefore, applying the latest available patch set for versions 12.2.3 through 12.2.15 is the primary corrective action. Organizations should prioritize updating these specific components to ensure the vulnerability is closed at its source. In addition to patching, implementing network segmentation can reduce exposure by restricting HTTP access to Oracle Capacity instances only from trusted internal subnets or application servers rather than exposing them directly to broader networks. Web Application Firewalls configured with rulesets that detect and block anomalous request patterns associated with privilege escalation attempts can provide an additional layer of defense. Furthermore, enforcing strict role-based access control policies ensures that even if a vulnerability is present, the potential blast radius is limited by minimizing the privileges assigned to low-level user accounts interacting with the application. Regular security audits and penetration testing focused on internal operations modules will help identify similar weaknesses before they can be exploited in production environments.