Quick answers
- Is CVE-2026-83423 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-83423 being exploited in the wild.
- How severe is CVE-2026-83423?
- High severity, with a CVSS score of 8.8, 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-2026-83423?
- 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-2026-83423 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-83423?
- 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 easily exploitable authentication or authorization bypass vulnerability in the Oracle JDeveloper Security Framework component. The flaw requires only low privilege network access via HTTP; no special user interaction is needed. A successful exploit allows an authenticated or low-privileged attacker to escalate privileges and achieve complete takeover of the JDeveloper instance, with impacts spanning confidentiality, integrity, and availability. Affected versions include 12.2.1.4.0 and 14.1.2.0.0. Oracle has released patches as part of their September 2026 security updates.
Affected products
- Oracle JDeveloper 12.2.1.4.0, 14.1.2.0.0
Timeline
- 2026-09-15: disclosed: CVE-2026-83423 published
- 2026-09-15: advisory: Oracle security alert CSPUSep2026 released