# CVE-2026-91355: Oracle Outside In Technology privilege escalation in Clean Content SDK

Source: https://junglewise.ai/threats/cve-2026-91355-vulnerability-in-the-oracle-outside-in-technology-product-of  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-20. Updated: 2026-10-20  
License: CC BY 4.0 with a link back

CVE-2026-91355 · Severity: high · CVSS 8.4 · Published 2026-10-20

Oracle Outside In Technology is a document processing component used in Oracle Fusion Middleware to handle file conversions and content extraction. An unauthenticated local attacker who gains access to the infrastructure can exploit this vulnerability to take complete control of the Outside In Technology process, potentially compromising the entire Fusion Middleware deployment and the data it processes.

Technologies: [Oracle Outside In Technology](https://junglewise.ai/threats/technologies/outside-in-technology). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-91355 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-91355 being exploited in the wild.

**How severe is CVE-2026-91355?** High severity, with a CVSS score of 8.4, published 20 October 2026.

**Which products and versions are affected?** Oracle Outside In Technology 8.5.8.

**Is there a fix for CVE-2026-91355?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-91355 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-91355?** Check whether you run Oracle Outside In Technology at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

This is a privilege escalation vulnerability in the Outside In Clean Content SDK component. The vulnerability is easily exploitable by an unauthenticated attacker with local logon access to the infrastructure; it requires no user interaction and runs with high privileges. Successful exploitation results in complete compromise of the affected component, allowing arbitrary code execution and full system takeover.

## Affected products

- Oracle Outside In Technology 8.5.8

## Timeline

- 2026-10-20: disclosed

## References

- [https://www.oracle.com/security-alerts/cpuoct2026.html](https://www.oracle.com/security-alerts/cpuoct2026.html)

## Related threats

- [Oracle Outside In Technology privilege escalation in Core](https://junglewise.ai/threats/cve-2026-91483-vulnerability-in-the-oracle-outside-in-technology-product-of)
- [Oracle Outside In Technology privilege escalation in Clean Content SDK](https://junglewise.ai/threats/cve-2026-91475-vulnerability-in-the-oracle-outside-in-technology-product-of)
- [Oracle Outside In Technology privilege escalation in Image Export SDK](https://junglewise.ai/threats/cve-2026-91460-vulnerability-in-the-oracle-outside-in-technology-product-of)
- [Oracle Outside In Technology code execution in Image Export SDK](https://junglewise.ai/threats/cve-2026-91459-vulnerability-in-the-oracle-outside-in-technology-product-of)
- [Oracle Outside In Technology privilege escalation in Outside In Core](https://junglewise.ai/threats/cve-2026-91458-vulnerability-in-the-oracle-outside-in-technology-product-of)