CVE-2026-91352 in Outside In Technology
Summary
by MITRE • 10/21/2026
Vulnerability in the Oracle Outside In Technology product of Oracle Fusion Middleware (component: Outside In Clean Content SDK). The supported version that is affected is 8.5.8. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Outside In Technology. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Outside In Technology. CVSS 3.1 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 10/21/2026
The vulnerability identified in Oracle Outside In Technology, specifically within the Clean Content SDK component of version 8.5.8, represents a significant availability risk for organizations relying on this middleware product. This flaw is classified under CWE-400, which denotes uncontrolled resource consumption, and aligns with ATT&CK technique T1499, Endpoint Denial of Service. The core technical issue stems from the way the Clean Content SDK processes incoming data streams via HTTP without adequate validation or rate limiting mechanisms. When an attacker sends a specifically crafted request to the affected service, it triggers an inefficient processing loop or memory allocation pattern that exhausts system resources such as CPU cycles or available memory. This behavior does not allow for code execution or privilege escalation but directly impacts the stability and responsiveness of the Oracle Fusion Middleware environment hosting the Outside In Technology services.
The operational impact of this vulnerability is primarily centered on service availability rather than data integrity or confidentiality, as indicated by a CVSS 3.1 base score of 5.3 with an emphasis on Availability. An unauthenticated attacker who has network access to the HTTP interface can exploit this flaw to cause a partial denial of service. This means that while the system may not crash entirely, its performance degrades significantly, leading to increased latency, timeouts for legitimate users, or temporary unavailability of specific content processing functions. In enterprise environments where Oracle Fusion Middleware is used for document conversion and previewing services, such disruptions can hinder business operations, particularly if these services are critical for internal workflows or customer-facing applications that require real-time document rendering.
Mitigation strategies must focus on both immediate remediation and long-term architectural controls. The primary recommendation is to apply the latest security patches provided by Oracle for version 8.5.8 of Outside In Technology, as vendor updates typically include fixes for resource management flaws within the SDK. Additionally, organizations should implement network-level protections such as Web Application Firewalls (WAF) configured to detect and block anomalous HTTP traffic patterns associated with denial-of-service attacks. Rate limiting on the HTTP endpoints serving the Clean Content SDK can also help mitigate the impact by preventing a single source from overwhelming the service resources. Regular monitoring of system resource utilization for spikes in CPU or memory usage during document processing requests is advised to identify potential exploitation attempts early, allowing security teams to respond before significant operational disruption occurs.