Quick answers
- Is CVE-2026-83488 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-83488 being exploited in the wild.
- How severe is CVE-2026-83488?
- Medium severity, with a CVSS score of 5.4, published 15 September 2026.
- Which products and versions are affected?
- Oracle Helidon 4.0.0-4.5.4.
- Is there a fix for CVE-2026-83488?
- 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-2026-83488 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-83488?
- Check whether you run Oracle Helidon 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 helidon-microprofile-security component affecting Helidon versions 4.0.0 through 4.5.4. It is an authorization/access control flaw that allows a low-privileged authenticated attacker to bypass security restrictions via HTTP network access. No special user interaction or high complexity is required; an attacker with valid credentials can perform unauthorized read operations on sensitive data and execute unauthorized create/update/delete operations on accessible application data. Patches are expected from Oracle's security update process.
Affected products
- Oracle Helidon 4.0.0-4.5.4
Timeline
- 2026-09-15: disclosed