---
id: CVE-2026-101048
title: >-
  Cloudreve before 4.17.0 registers the administrative node test endpoints (POST
  /api/v4/admin/node/test and POST /api/v4/admin/node/test/downloader) without
  requiring the Admin.Write OAuth scope, unlike the node create/update/delete
  route…
summary: >-
  Cloudreve before 4.17.0 registers the administrative node test endpoints (POST
  /api/v4/admin/node/test and POST /api/v4/admin/node/test/downloader) without
  requiring the Admin.Write OAuth scope, unlike the node create/update/delete
  route…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L'
cwe:
  - CWE-863
vendor: cloudreve
product: cloudreve
affected:
  - cloudreve < 4.17.0
patched:
  - github.com/cloudreve/Cloudreve/v4 4.0.0-20260626022735-332a9d800205
published: '2026-09-27'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T16:17:00.940'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-101048'
references:
  - url: >-
      https://github.com/cloudreve/cloudreve/security/advisories/GHSA-v6w6-358x-2433
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/cloudreve-before-4.17.0-ssrf-via-admin-read-oauth-scope
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/cloudreve/cloudreve/security/advisories/GHSA-v6w6-358x-2433
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: >-
      https://github.com/cloudreve/cloudreve/commit/332a9d800205082a2469e555fd66a63f18d9d5dc
  - url: 'https://github.com/cloudreve/cloudreve'
  - url: 'https://github.com/cloudreve/cloudreve/releases/tag/4.17.0'
tags:
  - nvd
  - cve.org
  - exploit-available
  - osv
  - go
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-30T15:30:07.809939Z'
epss: 0.00235
epssPercentile: 0.14361
aliases:
  - GHSA-v6w6-358x-2433
  - GO-2026-6106
ecosystem: go
ingestedAt: '2026-09-27T17:56:02.211Z'
---

## Overview

Cloudreve before 4.17.0 registers the administrative node test endpoints (POST /api/v4/admin/node/test and POST /api/v4/admin/node/test/downloader) without requiring the Admin.Write OAuth scope, unlike the node create/update/delete routes. An OAuth client that has been authorized by an administrator with only the Admin.Read scope can therefore submit attacker-controlled node definitions and cause the Cloudreve server to issue outbound requests to arbitrary URLs, enabling blind server-side request forgery, internal service probing, and delivery of signed Cloudreve slave-style requests to attacker-chosen endpoints.

## Remediation

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

## Package advisory (CVE-2026-101048)

Affected packages:

- `github.com/cloudreve/Cloudreve/v4 < 4.0.0-20260626022735-332a9d800205`
- `github.com/cloudreve/Cloudreve/v3 <= 3.0.0-20250225100611-da4e44b77af4`

Patched in:

- `github.com/cloudreve/Cloudreve/v4 4.0.0-20260626022735-332a9d800205`

Source: https://osv.dev/vulnerability/GHSA-v6w6-358x-2433