# CVE-2026-87334: Oracle JDeveloper information disclosure in ADF Faces

Source: https://junglewise.ai/threats/cve-2026-87334-vulnerability-in-the-oracle-jdeveloper-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-2026-87334 · Severity: medium · CVSS 5.5 · Published 2026-10-20

Oracle JDeveloper is a development environment for building enterprise Java applications. A local vulnerability in its ADF Faces component allows a low-privileged attacker with access to the system running JDeveloper to read sensitive data or access all data that JDeveloper can read. This could expose source code, configuration secrets, or other sensitive project information.

Technologies: [Oracle Jdeveloper](https://junglewise.ai/threats/technologies/jdeveloper). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-87334 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-87334 being exploited in the wild.

**How severe is CVE-2026-87334?** Medium severity, with a CVSS score of 5.5, published 20 October 2026.

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

**Is there a fix for CVE-2026-87334?** 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-2026-87334 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-87334?** Check whether you run Oracle Jdeveloper 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

An information disclosure vulnerability exists in the ADF Faces component of Oracle JDeveloper, exploitable by a local attacker with low privileges. The vulnerability requires logon access to the infrastructure where JDeveloper executes, with no user interaction required. Successful exploitation results in unauthorized access to critical data or complete data disclosure from JDeveloper.

## Affected products

- Oracle JDeveloper 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 JDeveloper privilege escalation in component](https://junglewise.ai/threats/cve-2026-91320-vulnerability-in-the-oracle-jdeveloper-product-of-oracle-fusion)
- [Oracle JDeveloper data integrity violation in Java Business Objects](https://junglewise.ai/threats/cve-2026-91319-vulnerability-in-the-oracle-jdeveloper-product-of-oracle-fusion)
- [Oracle JDeveloper cross-site scripting in Security Framework](https://junglewise.ai/threats/cve-2026-91318-vulnerability-in-the-oracle-jdeveloper-product-of-oracle-fusion)
- [Oracle JDeveloper remote code execution in ADF Databinding](https://junglewise.ai/threats/cve-2026-91317-vulnerability-in-the-oracle-jdeveloper-product-of-oracle-fusion)
- [Oracle JDeveloper unauthorized information disclosure](https://junglewise.ai/threats/cve-2026-83424-oracle-jdeveloper-unauthorized-information-disclosure)