{"schemaVersion":3,"id":"CVE-2026-54562","aliases":["GHSA-x756-g4x3-c64m","GO-2026-6023"],"status":"published","duplicateOf":null,"title":null,"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. 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