CVE-2026-54562
MEDIUMCloudreve: Non-admin remote download users can SSRF loopback/internal services and read imported responses
Title source: cnaDescription
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.
References (3)
Core 3
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/cloudreve/cloudreve/security/advisories/GHSA-x756-g4x3-c64m
X_Refsource_Misc x_refsource_misc
https://github.com/cloudreve/cloudreve/commit/aaebf317a78f2413d74afd66c21a1f3143711312
X_Refsource_Misc x_refsource_misc
https://github.com/cloudreve/cloudreve/releases/tag/4.16.1
Scores
CVSS v3
6.5
EPSS
0.0024
EPSS Percentile
15.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-918
Status
published
Products (3)
cloudreve/Cloudreve
0 - 3.0.0-20250225100611-da4e44b77af4Go
cloudreve/Cloudreve
0 - 4.0.0-20260606025411-aaebf317a78fGo
cloudreve/cloudreve
< 4.16.1
Published
Jul 15, 2026
Tracked Since
Jul 15, 2026