CVE-2026-101568: Oracle Helidon information disclosure in helidon-health

CVE-2026-101568 · Severity: medium · CVSS 5.3 · Published 2026-10-20

Oracle Helidon is a framework for building Java applications. The helidon-health component contains an authentication bypass vulnerability that allows an unauthenticated attacker to read sensitive application data over the network without authorization.

Technologies: Oracle Helidon. Vendors: Oracle.

Quick answers

Is CVE-2026-101568 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-101568 being exploited in the wild.
How severe is CVE-2026-101568?
Medium severity, with a CVSS score of 5.3, published 20 October 2026.
Which products and versions are affected?
Oracle Helidon 3.0.0-3.2.21, 4.0.0-4.5.5, 27.0.0.
Is there a fix for CVE-2026-101568?
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-2026-101568 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-101568?
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

An unauthenticated attacker can exploit an easily exploitable vulnerability in the helidon-health component via HTTP network access, bypassing authentication controls to gain unauthorized read access to a subset of Helidon-accessible data. The vulnerability requires no user interaction and has a low attack complexity, allowing remote exploitation with only network access.

Affected products

  • Oracle Helidon 3.0.0-3.2.21, 4.0.0-4.5.5, 27.0.0

Timeline

  • 2026-10-20: disclosed

References

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