CVE-2026-91218 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 low privileged 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 creation, deletion or modification access to critical data or all Oracle SOA Suite accessible data as well as unauthorized access to critical data or complete access to all Oracle SOA Suite accessible data. CVSS 3.1 Base Score 9.6 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/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 and enterprise integration. This flaw affects specific supported versions including 12.2.1.4.0 and 14.1.2.0.0, indicating that even recently patched or maintained releases are susceptible to exploitation. The nature of this vulnerability is particularly concerning because it allows for remote code execution or unauthorized data manipulation through standard HTTP network connections. This means an attacker does not need physical access or complex local privileges; instead, they can initiate attacks from a remote location over the network, leveraging the ubiquitous and often open ports associated with web services and middleware applications.
The technical flaw enables low-privileged attackers to compromise the integrity and confidentiality of the system without requiring high-level administrative credentials. This is a significant deviation from typical security models where elevated privileges are required for such severe impacts. The vulnerability allows an attacker who has basic network access and minimal user permissions to execute actions that bypass standard authentication checks or authorization controls within the Fabric Layer. By exploiting this weakness, attackers can manipulate the underlying data structures of the SOA Suite environment. This capability stems from improper validation or handling of input data sent via HTTP requests, which are processed by the middleware before reaching deeper application logic. The ease of exploitation suggests that automated scanning tools could potentially detect and exploit this flaw with high reliability against unpatched systems.
The operational impact of this vulnerability is severe due to its potential for scope change. While technically located in Oracle SOA Suite, successful exploitation can lead to a compromise of additional products within the broader enterprise infrastructure. This lateral movement capability means that an attacker who gains foothold through the SOA Suite could pivot to other connected systems, databases, or services that rely on the same middleware layer for data exchange and process orchestration. The impact is categorized as high in both confidentiality and integrity domains according to CVSS 3.1 standards. Specifically, attackers can achieve unauthorized creation, deletion, or modification of critical data. This includes sensitive business logic configurations, customer records, financial transactions, and other proprietary information stored within the SOA Suite accessible data stores. Furthermore, complete access to all Oracle SOA Suite accessible data is possible, leading to massive data breaches that could violate regulatory compliance frameworks such as GDPR, HIPAA, or PCI-DSS depending on the nature of the processed data.
From a classification perspective, this vulnerability aligns with CWE-20 Improper Input Validation and potentially CWE-798 if it involves hardcoded credentials or excessive privileges in configuration files accessed via the HTTP interface. In terms of offensive security frameworks like MITRE ATT&CK, this behavior corresponds to techniques involving Initial Access through web applications and subsequent Privilege Escalation due to the low privilege requirement for high impact. The attack vector is classified as Network with Low Complexity and requires no User Interaction, which maximizes its exploitability score. The Scope Change indicates that the vulnerability affects resources beyond the vulnerable component itself, amplifying the risk profile significantly compared to isolated application flaws.
Mitigation strategies must prioritize immediate patching of Oracle SOA Suite to the latest available version released by Oracle Security Alerts. Organizations should verify their current deployment versions against the affected list and apply official patches provided in security advisories. In addition to patching, network segmentation is crucial; ensuring that HTTP access to the Fabric Layer is restricted to trusted internal networks or secured via robust authentication gateways can reduce exposure. Implementing Web Application Firewalls with rules specifically tuned for SOA Suite traffic patterns may help detect and block exploitation attempts involving malformed inputs designed to trigger this flaw. Regular vulnerability scanning focused on middleware components should be conducted to identify unpatched instances before they are targeted by automated attack tools. Monitoring logs for unusual HTTP requests or unauthorized data modifications can also aid in early detection of active exploitation attempts.