# CVE-2026-83266: Oracle JDeveloper authentication bypass in Resource Catalog Services

Source: https://junglewise.ai/threats/cve-2026-83266-oracle-jdeveloper-authentication-bypass-in-resource-catalog  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-15. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-83266 · Severity: high · CVSS 8.2 · Published 2026-09-15

Oracle JDeveloper is a development environment used by software engineers to build enterprise applications. An unauthenticated attacker can exploit this flaw over the network to read sensitive project data and disrupt service availability, without requiring login credentials or user interaction.

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

## Quick answers

**Is CVE-2026-83266 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-83266 being exploited in the wild.

**How severe is CVE-2026-83266?** High severity, with a CVSS score of 8.2, published 15 September 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-2026-83266?** 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-2026-83266 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-83266?** 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

This is an authentication bypass vulnerability in the Resource Catalog Services component of Oracle JDeveloper. The flaw is easily exploitable via HTTP and requires no authentication, no special configuration, and no user interaction. An attacker with network access can directly access the vulnerable service and either extract critical data or cause partial denial of service. The affected versions are 12.2.1.4.0 and 14.1.2.0.0. Oracle has published a security advisory (CSP September 2026) addressing this issue; patch availability should be confirmed through the official advisory.

## Affected products

- Oracle JDeveloper 12.2.1.4.0, 14.1.2.0.0

## Timeline

- 2026-09-15: disclosed

## References

- [https://www.oracle.com/security-alerts/cspusep2026.html](https://www.oracle.com/security-alerts/cspusep2026.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)
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- [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 information disclosure in ADF Faces](https://junglewise.ai/threats/cve-2026-87334-vulnerability-in-the-oracle-jdeveloper-product-of-oracle-fusion)