CVE-2026-91250 in SOA Suite
Summary
by MITRE • 10/21/2026
Vulnerability in the Oracle SOA Suite product of Oracle Fusion Middleware (component: Adapters). 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 multiple protocols 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 takeover of Oracle SOA Suite. CVSS 3.1 Base Score 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).
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Analysis
by VulDB Data Team • 10/21/2026
The identified vulnerability resides within the Adapters component of Oracle SOA Suite, a critical part of the Oracle Fusion Middleware ecosystem that facilitates integration between disparate enterprise applications and services. This security flaw affects specific supported versions, namely 12.2.1.4.0 and 14.1.2.0.0, indicating that even recently maintained releases are susceptible to exploitation. The nature of this vulnerability is particularly severe due to its low barrier for entry; it can be exploited by an attacker with only low-level privileges who has network access via multiple protocols. This broad accessibility means that the attack surface is significantly expanded compared to vulnerabilities requiring high privilege levels or specific user interactions, allowing a wider range of potential adversaries to attempt exploitation against affected systems.
The technical flaw allows for a complete compromise of the Oracle SOA Suite environment upon successful execution. The impact assessment reveals a CVSS 3.1 Base Score of 9.9 out of 10, which classifies this as a Critical severity issue. This high score is driven by maximum ratings across all three core security metrics: Confidentiality, Integrity, and Availability. An attacker who successfully exploits this vulnerability can achieve full takeover of the Oracle SOA Suite instance. This level of compromise implies that sensitive data processed or stored within the suite can be exfiltrated without restriction, system configurations and business logic can be altered maliciously, and service availability can be disrupted to cause operational downtime. The ability to take over the application server effectively grants the attacker administrative control over the middleware layer, enabling further lateral movement within the network infrastructure.
A critical aspect of this vulnerability is its potential for scope change, where attacks targeting Oracle SOA Suite may significantly impact additional products connected through the integration framework. Since SOA Suite often serves as a central hub connecting various enterprise systems such as ERP, CRM, and custom applications, compromising it can provide an attacker with a foothold to pivot into these interconnected environments. This cascading effect amplifies the risk beyond the immediate application server, potentially leading to broader organizational compromise. The vulnerability aligns with CWE-287, which describes Improper Authentication, suggesting that the flaw likely involves bypassing or manipulating authentication mechanisms within the Adapters component. Furthermore, from a tactical perspective, this exploitation vector corresponds to MITRE ATT&CK techniques related to Initial Access and Privilege Escalation, specifically those involving network-based attacks against application services where low-privileged accounts are leveraged to gain higher levels of control.
To mitigate the risks associated with this vulnerability, immediate action is required to patch or upgrade the affected Oracle SOA Suite installations to a version that includes the security fix provided by Oracle. Organizations should verify their current software versions and apply the latest critical patches as soon as they become available through official Oracle support channels. In addition to patching, it is advisable to implement network segmentation strategies to restrict access to the Adapters component from untrusted or low-privilege networks. Implementing strict firewall rules that limit inbound connections to only necessary IP addresses and protocols can reduce the attack surface. Furthermore, enforcing multi-factor authentication for all administrative accounts and applying the principle of least privilege across user roles will help minimize the impact if a breach occurs. Continuous monitoring of system logs for anomalous activity related to adapter interactions is also recommended to detect potential exploitation attempts in real-time.