CVE-2026-91475 Oracle Corporation CVE debrief

Who should care

Defenders responsible for Oracle Outside In Technology infrastructure, security teams with low-privileged users, and administrators of Oracle Fusion Middleware should assess exposure and prioritize remediation.

Why it matters

CVE-2026-91475 is a medium-severity vulnerability in Oracle Outside In Technology that allows low-privileged attackers to compromise the product, potentially leading to unauthorized data access, modification, and partial denial of service. Defenders should prioritize remediation and verify the integrity of Oracle Outside In Technology accessible data. Evidence from official sources, including the CVE record and NVD entry, supports these conclusions.

• Potential unauthorized data access and modification
• Partial denial of service (DOS) of Oracle Outside In Technology
• Increased risk for low-privileged attackers with logon access
• Need for verification of Oracle Outside In Technology accessible data integrity

Technical summary

The vulnerability in Oracle Outside In Technology (component: Outside In Clean Content SDK) allows low-privileged attackers with logon access to compromise the product. Successful attacks can result in unauthorized creation, deletion, or modification access to critical data or all Oracle Outside In Technology accessible data, as well as unauthorized read access to a subset of Oracle Outside In Technology accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Outside In Technology. The CVSS 3.1 Base Score is 6.6 (Confidentiality, Integrity, and Availability impacts).

Defensive priority

Medium

Recommended defensive actions

• Review and apply Oracle's security patches for Outside In Technology
• Restrict access to the infrastructure where Oracle Outside In Technology executes
• Monitor for unauthorized data access or modification
• Verify the integrity of Oracle Outside In Technology accessible data
• Perform vulnerability scanning to identify exposed systems
• Implement additional logging and monitoring for suspicious activity
• Review system configurations for potential weaknesses

Evidence notes

The CVE record and NVD entry provide details on the vulnerability in Oracle Outside In Technology. Oracle's security alert documentation is also available for reference. Evidence from official sources supports the conclusions that CVE-2026-91475 is a medium-severity vulnerability allowing low-privileged attackers to compromise Oracle Outside In Technology, potentially leading to unauthorized data access, modification, and partial denial of service. The official CVE record was published on 2026-10-20T22:20:51.000Z and has not been

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.