# CVE-2026-87347: Oracle HTTP Server data access vulnerability in OSSL Module

Source: https://junglewise.ai/threats/cve-2026-87347-vulnerability-in-the-oracle-http-server-product-of-oracle-fusion  
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-2026-87347 · Severity: critical · CVSS 9.6 · Published 2026-10-20

A vulnerability in Oracle HTTP Server, a web server component of Oracle Fusion Middleware, allows a low-privileged attacker with network access to read, modify, or delete sensitive data. An attacker can exploit this flaw remotely over HTTP to gain unauthorized access to critical database content or other Oracle system resources, potentially compromising the confidentiality and integrity of business data.

Technologies: [Oracle Http Server](https://junglewise.ai/threats/technologies/oracle-http-server). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-87347 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-87347 being exploited in the wild.

**How severe is CVE-2026-87347?** Critical severity, with a CVSS score of 9.6, published 20 October 2026.

**Which products and versions are affected?** Oracle Http Server 12.2.1.4.0, 14.1.2.0.0.

**Is there a fix for CVE-2026-87347?** 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-2026-87347 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-87347?** Check whether you run Oracle Http Server 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

The vulnerability exists in the OSSL Module of Oracle HTTP Server and is easily exploitable via network attack (HTTP) by a low-privileged attacker without user interaction required. Successful exploitation results in unauthorized read, write, and delete access to critical data accessible by Oracle HTTP Server, with scope change indicating potential impact on downstream systems relying on the server.

## Affected products

- Oracle HTTP Server 12.2.1.4.0, 14.1.2.0.0

## 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 HTTP Server privilege escalation in Web Listener](https://junglewise.ai/threats/cve-2026-91473-vulnerability-in-the-oracle-http-server-product-of-oracle-fusion)
- [Oracle HTTP Server privilege escalation in OSSL Module](https://junglewise.ai/threats/cve-2026-91419-vulnerability-in-the-oracle-http-server-product-of-oracle-fusion)
- [Oracle HTTP Server unauthorized data access in Weblogic Proxy Plug-in](https://junglewise.ai/threats/cve-2026-87346-vulnerability-in-the-oracle-http-server-product-of-oracle-fusion)
- [Vulnerability in the Oracle HTTP Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.](https://junglewise.ai/threats/cve-2026-34291-vulnerability-in-the-oracle-http-server-product-of-oracle-fusion)