---
id: "CVE-2026-101576"
kind: "vulnerability"
aliases: ["CVE-2026-101576"]
title: "Helidon: LRA component flaw allows limited unauthorized data reads over HTTP"
severity: "low"
cvss: 3.7
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["helidon", "java", "runtime", "self-hosted"]
not_affected_if: ["lra-not-used"]
published_at: "2026-10-20T22:18:10+00:00"
first_seen_at: "2026-10-23T21:57:22+00:00"
updated_at: "2026-10-25T04:43:58+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101576", "first_seen_at": "2026-10-23T21:57:22+00:00"}]
---

# Helidon: LRA component flaw allows limited unauthorized data reads over HTTP

Helidon versions 4.0.0 through 4.5.5 contain a flaw in the LRA (Long Running Actions) component. An unauthenticated attacker on the network who can send HTTP requests can read a subset of data accessible to Helidon, though exploitation is difficult.

_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, looking for versions from `4.0.0` to `4.5.5`
- Confirm whether the LRA module (`helidon-lra` or equivalent) is on the classpath and exposed over HTTP

## Fix

- Upgrade Helidon to a release newer than `4.5.5`, per the vendor advisory
- unknown (the sources do not name the exact fixed version)

## Timeline

- 2026-10-23T21:57:22+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-101576

## From the sources

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: LRA).  Supported versions that are affected are 4.0.0-4.5.5. Difficult to exploit 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 3.7 (Confidentiality impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/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_