---
id: "CVE-2026-101575"
kind: "vulnerability"
aliases: ["CVE-2026-101575"]
title: "Helidon: LRA component flaw lets unauthenticated remote attackers modify data"
severity: "medium"
cvss: 6.5
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["helidon", "java", "runtime", "self-hosted"]
not_affected_if: ["default-config"]
published_at: "2026-10-20T22:18:10+00:00"
first_seen_at: "2026-10-23T21:57:22+00:00"
updated_at: "2026-10-25T03:55:14+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101575", "first_seen_at": "2026-10-23T21:57:22+00:00"}]
---

# Helidon: LRA component flaw lets unauthenticated remote attackers modify data

Helidon versions 4.0.0 through 4.5.5 contain a flaw in the LRA (Long Running Action) component that can be reached over HTTP. An unauthenticated attacker with network access can read, change or delete some data handled by Helidon and partially disrupt the service.

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

## How to check

- Check the Helidon version in the project build file (for example `pom.xml` or `build.gradle`) and look for `helidon` versions between `4.0.0` and `4.5.5`
- Check whether the application uses the Helidon LRA component (`helidon-lra` or LRA annotations)

## Fix

- Upgrade Helidon to a release later than `4.5.5` (the sources do not name the exact fixed version; check the Oracle advisory)

## Timeline

- 2026-10-23T21:57:22+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-101575

## 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.  While the vulnerability is in Helidon, attacks may significantly impact additional products (scope change).  Successful attacks of this vulnerability can result in  unauthorized update, insert or delete access to some of Helidon accessible data as well as  unauthorized read access to a subset of Helidon accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Helidon. CVSS 3.1 Base Score 6.5 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L).

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