---
id: CVE-2026-108372
title: >-
  LoopX serve-status permissive CORS policy exposes control-plane state and
  private Markdown files
summary: >-
  Open and provider-neutral, LoopX is a lightweight state kernel and local-first
  control plane for loop engineering. From version 0.0.1 until 0.4.5, `loopx
  serve-status` in `loopx/status_server.py` uses
  `StatusRequestHandler._send_json()` …
severity: high
cvss: 7.1
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-346
  - CWE-942
vendor: huangruiteng
product: loopx
affected:
  - 'loopx >= 0.0.1, < 0.4.5'
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T21:29:13.757Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-108372'
references:
  - url: >-
      https://github.com/loopx-project/loopx/security/advisories/GHSA-vx2m-gpq4-8j5q
    label: >-
      https://github.com/loopx-project/loopx/security/advisories/GHSA-vx2m-gpq4-8j5q
  - url: 'https://github.com/loopx-project/loopx/pull/3137'
    label: 'https://github.com/loopx-project/loopx/pull/3137'
  - url: >-
      https://github.com/loopx-project/loopx/commit/838720fba42bd22f71b5bb763ec406f7bdf4c940
    label: >-
      https://github.com/loopx-project/loopx/commit/838720fba42bd22f71b5bb763ec406f7bdf4c940
  - url: 'https://github.com/loopx-project/loopx/releases/tag/v0.4.5'
    label: 'https://github.com/loopx-project/loopx/releases/tag/v0.4.5'
tags:
  - cve.org
ingestedAt: '2026-10-16T21:53:23.553Z'
---

## Overview

Open and provider-neutral, LoopX is a lightweight state kernel and local-first control plane for loop engineering. From version 0.0.1 until 0.4.5, `loopx serve-status` in `loopx/status_server.py` uses `StatusRequestHandler._send_json()` and `do_OPTIONS()` to send `Access-Control-Allow-Origin: *` for unauthenticated responses on predictable loopback ports. A remote attacker can cause an operator who visits attacker-controlled web content to issue cross-origin requests to `GET /status.json`, `GET /review-material?goal_id=...&path=...`, `GET /`, and `POST /control-plane/configure-goal/dry-run`, exposing control-plane state, goal and run information, local absolute paths, private Markdown files below registered goal roots, and dry-run configuration projections. The affected routes do not provide cross-origin writes or arbitrary-file access. This issue is fixed in version 0.4.5.

## Affected

- `loopx >= 0.0.1, < 0.4.5`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.