---
id: "CVE-2026-101568"
kind: "vulnerability"
aliases: ["CVE-2026-101568"]
title: "Helidon: health component lets unauthenticated network users read some data"
severity: "medium"
cvss: 5.3
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["helidon", "java", "oracle-fusion-middleware", "runtime", "self-hosted"]
not_affected_if: ["default-config", "no-helidon-health"]
published_at: "2026-10-20T22:18:08+00:00"
first_seen_at: "2026-10-23T21:57:22+00:00"
updated_at: "2026-10-25T04:24:27+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101568", "first_seen_at": "2026-10-23T21:57:22+00:00"}]
---

# Helidon: health component lets unauthenticated network users read some data

Oracle Helidon's helidon-health component exposes a subset of data to unauthenticated HTTP requests from the network. An attacker can read some Helidon-accessible information but cannot change it, per the CVSS vector (confidentiality impact only).

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the Helidon version in the project's pom.xml or build file; affected versions are 3.0.0 through 3.2.21, 4.0.0 through 4.5.5, and 27.0.0.
- Confirm whether the application uses the helidon-health dependency and exposes its health endpoints over HTTP.

## Fix

- Upgrade Helidon to a release outside the affected ranges (fixed version unknown from the sources; check Oracle's advisory).
- Restrict access to health endpoints at the network or proxy layer until patched.

## Timeline

- 2026-10-23T21:57:22+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-101568

## From the sources

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-health).  Supported versions that are affected are 3.0.0-3.2.21, 4.0.0-4.5.5 and 27.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon.  Successful attacks of this vulnerability can result in  unauthorized read access to a subset of Helidon accessible data. CVSS 3.1 Base Score 5.3 (Confidentiality impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_