CVE-2026-54562CWE-918

Cloudreve: Non-admin remote download users can SSRF loopback/internal services and read imported responses

Medium · published July 15, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
33.3
In the wild
Unconfirmed
What it is

Cloudreve is a self-hosted file management and sharing system. Prior to 4.16.1, Cloudreve's remote download workflow accepts user-supplied URLs at POST /api/v4/workflow/download and passes them to the configured downloader without blocking loopback, localhost, IPv6 localhost, or redirect-to-loopback targets, allowing a non-admin user with remote download permission to fetch internal-only URLs and read the response after it is imported into the user's own files. This issue is fixed in version 4.16.1.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00402 · 33.3th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-07-15T14:37Z
EPSS history
Timeline
  • 15 JUL 14:37Z
    Cloudreve: Non-admin remote download users can SSRF loopback/internal services and read imported responses
    cvelistv5