CVE-2026-91459 Oracle Corporation CVE debrief

Who should care

Defenders responsible for Oracle Outside In Technology deployments should assess the exposure of affected systems and prioritize verification and patching. Defenders should care about CVE-2026-91459 because it allows an unauthenticated attacker to potentially take over Oracle Outside In Technology, requiring human interaction. The vulnerability has a high CVSS score of 7.8 and affects version 8.5.8 of the technology. Defenders should also monitor systems

Why it matters

Defenders should care about CVE-2026-91459 because it allows an unauthenticated attacker to potentially take over Oracle Outside In Technology, requiring human interaction. The vulnerability has a high CVSS score of 7.8 and affects version 8.5.8 of the technology. Defenders responsible for Oracle Outside In Technology deployments should assess exposure, prioritize verification and patching, and monitor systems for suspicious activity.

• Potential takeover of Oracle Outside In Technology by an attacker
• Requirement for human interaction from another person for successful attacks
• Need for verification and patching of affected systems

Technical summary

The vulnerability exists in the Outside In Image Export SDK component of Oracle Outside In Technology. It allows an unauthenticated attacker with logon access to compromise the technology, requiring human interaction from another person. Successful attacks can result in a takeover of Oracle Outside In Technology. The vulnerability has a high CVSS score of 7.8 and affects version 8.5.8 of the technology. Defenders should prioritize verifying the presence of this vulnerability in their Oracle Outside In Technology deployments and assess the exposure of affected systems.

Defensive priority

Defenders should prioritize verifying the presence of this vulnerability in their Oracle Outside In Technology deployments and assess the exposure of affected systems.

Recommended defensive actions

• Verify the presence of Oracle Outside In Technology in your environment and assess its exposure.
• Review and apply any available security patches or updates for Oracle Outside In Technology.
• Monitor systems for suspicious activity related to this vulnerability.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record and NVD entry provide details about the vulnerability, including its CVSS score and vector. Oracle's security alert page also provides information about the vulnerability. The vulnerability exists in Oracle Outside In Technology, specifically in the Outside In Image Export SDK component. Defenders should verify the presence of this vulnerability in their Oracle Outside In Technology deployments and assess the exposure of affected systems. The CVE Program record and NVD entry provide source-provided CVE metadata and a 7.

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.