CVE-2026-54562

Published: Jul 15, 2026Modified: Jul 15, 2026Deferred

6.5

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitability: 2.8 / Impact: 3.6

Source: security-advisories@github.com (Secondary)

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.

Related CWEs

CWE-918

Server-Side Request Forgery (SSRF)

The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

References (4)

https://github.com/cloudreve/cloudreve/commit/aaebf317a78f2413d74afd66c21a1f3143711312

Source: security-advisories@github.com

https://github.com/cloudreve/cloudreve/releases/tag/4.16.1

Source: security-advisories@github.com

https://github.com/cloudreve/cloudreve/security/advisories/GHSA-x756-g4x3-c64m

Source: security-advisories@github.com

https://github.com/cloudreve/cloudreve/security/advisories/GHSA-x756-g4x3-c64m

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.