---
id: CVE-2026-119598
title: >-
  Miaomiaowu before 0.9.3 Cross-User Proxy Provider Config Disclosure via
  external_subscription_id
summary: >-
  Miaomiaowu before 0.9.3 contains an insecure direct object reference
  vulnerability in /api/user/proxy-provider-configs that allows authenticated
  users to read other users' configurations. Attackers can iterate the global
  auto-increment e…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-639
vendor: iluobei
product: miaomiaowu
affected:
  - miaomiaowu < 0.9.3
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-30T15:21:14.576493Z'
published: '2026-10-30'
updated: '2026-10-30'
sourceUpdated: '2026-10-30T15:53:35.836Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-119598'
references:
  - url: >-
      https://github.com/iluobei/miaomiaowu/commit/14ccf37ef82cff06b636454c29db7752cdce7cab
  - url: 'https://github.com/iluobei/miaomiaowu/issues/131'
  - url: >-
      https://github.com/iluobei/miaomiaowu/blob/v0.9.2/internal/handler/proxy_provider.go#L114
  - url: >-
      https://github.com/iluobei/miaomiaowu/blob/v0.9.2/internal/storage/traffic.go#L4808
  - url: 'https://github.com/iluobei/miaomiaowu/releases/tag/v0.9.3'
    label: miaomiaowu v0.9.3 Release Notes
  - url: >-
      https://hackmd.io/@hieuPenguinnn/miaomiaowu-proxy-provider-config-cross-user-idor
  - url: 'https://github.com/iluobei/miaomiaowu'
  - url: >-
      https://www.vulncheck.com/advisories/miaomiaowu-before-0.9.3-cross-user-proxy-provider-config-disclosure-via-external-subscription-id
    label: >-
      VulnCheck Advisory: Miaomiaowu before 0.9.3 Cross-User Proxy Provider
      Config Disclosure via external_subscription_id
tags:
  - cve.org
epss: 0.00347
epssPercentile: 0.2839
ingestedAt: '2026-11-05T16:07:30.514Z'
---

## Overview

Miaomiaowu before 0.9.3 contains an insecure direct object reference vulnerability in /api/user/proxy-provider-configs that allows authenticated users to read other users' configurations. Attackers can iterate the global auto-increment external_subscription_id parameter to disclose override scripts, filter rules, custom request headers and health-check URLs.

## Affected

- `miaomiaowu < 0.9.3`

## Remediation

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