CVE-2026-91219 in SOA Suite
Summary
by MITRE • 10/21/2026
Vulnerability in the Oracle SOA Suite product of Oracle Fusion Middleware (component: Fabric Layer). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle SOA Suite. While the vulnerability is in Oracle SOA Suite, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle SOA Suite accessible data. CVSS 3.1 Base Score 8.6 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N).
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Analysis
by VulDB Data Team • 10/21/2026
The identified vulnerability resides within the Fabric Layer of Oracle SOA Suite, a critical component of Oracle Fusion Middleware that facilitates service-oriented architecture operations and integration workflows. This security flaw affects specific supported versions including 12.2.1.4.0 and 14.1.2.0.0, indicating that even recently maintained releases are susceptible to exploitation. The core technical issue involves an authentication bypass or improper access control mechanism within the HTTP interface of the Fabric Layer. This design flaw allows unauthenticated attackers who possess network connectivity to interact with vulnerable endpoints without providing valid credentials. Such a configuration error represents a fundamental failure in enforcing identity verification before granting access to sensitive system functions, which is particularly dangerous given that SOA Suite often handles enterprise-critical business logic and data integrations.
From an operational perspective, the impact of this vulnerability extends beyond the immediate boundaries of Oracle SOA Suite due to its role as a central integration hub within many organizational IT ecosystems. While the direct compromise occurs in the Fabric Layer, successful exploitation can lead to significant scope changes where additional products connected via these services are also compromised. The primary consequence is unauthorized access to critical data stored or processed by the middleware. An attacker leveraging this flaw can extract sensitive information such as customer records, financial transactions, or proprietary business processes that flow through the SOA infrastructure. Although the CVSS 3.1 vector indicates no immediate impact on integrity or availability with a score of I:N and A:N, the high confidentiality impact resulting in an overall base score of 8.6 underscores the severity of data exposure risks. This aligns closely with CWE-287 Improper Authentication and CWE-922 Insecure Storage of Sensitive Information if the accessed data is not adequately protected at rest or in transit after extraction.
The attack vector for this vulnerability is classified as network-accessible via HTTP, meaning it can be exploited remotely by an unauthenticated adversary with low complexity requirements. This simplicity makes automated scanning and exploitation tools highly effective against affected instances exposed to internal networks or the public internet. The lack of required user interaction further lowers the barrier to entry for attackers, allowing them to probe and exploit the weakness without needing social engineering tactics. In terms of threat modeling, this behavior corresponds to ATT&CK techniques related to Initial Access such as Exploit Public-Facing Application (T1190) or potentially Credential Access if the extracted data includes credentials used by other systems within the enterprise architecture. The ability to access all Oracle SOA Suite accessible data implies that an attacker could map out service endpoints, identify downstream dependencies, and potentially pivot into more secure segments of the network using harvested authentication tokens or connection strings found in configuration files exposed through this vulnerability.
Mitigation strategies must prioritize immediate remediation due to the high severity and ease of exploitation. Organizations running affected versions should apply the latest security patches provided by Oracle as soon as they are available for their specific release track. Until patching is feasible, network-level controls such as Web Application Firewalls (WAF) can be configured to block requests targeting known vulnerable endpoints or patterns associated with this exploit. Additionally, restricting HTTP access to the Fabric Layer components to only trusted internal IP addresses through firewall rules or reverse proxy configurations can significantly reduce the attack surface. It is also critical to audit existing deployments for any exposed services that do not require authentication and enforce strict identity verification policies across all middleware interfaces. Regular vulnerability assessments focusing on integration layers are essential to detect similar misconfigurations before they lead to data breaches, ensuring compliance with industry standards like NIST SP 800-53 which mandates robust access control mechanisms for information systems handling sensitive organizational data.