Vulnerabilities CVE-2026-54562

CVE-2026-54562

Medium

Open

TLP:CLEAR

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

NVD CVE.org

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Description

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.

Details

CVSS Score: 6.5
EPSS Score ⓘ: 0.24%

15.7th percentile
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Confidence: 90%
Published: Jul 15, 2026
Last Modified: Jul 15, 2026

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