{"id":"CVE-2026-54562","summary":"Cloudreve: Non-admin remote download users can SSRF loopback/internal services and read imported responses","details":"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.","aliases":["GHSA-x756-g4x3-c64m"],"modified":"2026-07-17T03:47:42.109148149Z","published":"2026-07-15T14:37:37.176Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-918"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54562.json"},"references":[{"type":"WEB","url":"https://github.com/cloudreve/cloudreve/releases/tag/4.16.1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54562.json"},{"type":"ADVISORY","url":"https://github.com/cloudreve/cloudreve/security/advisories/GHSA-x756-g4x3-c64m"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54562"},{"type":"FIX","url":"https://github.com/cloudreve/cloudreve/commit/aaebf317a78f2413d74afd66c21a1f3143711312"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/cloudreve/cloudreve","events":[{"introduced":"0"},{"fixed":"aaebf317a78f2413d74afd66c21a1f3143711312"},{"fixed":"26b6b1044b0253c5ead7d5a90eaa10ff67ac2582"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"4.16.1"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["4.16.0","4.15.0","4.14.1","4.14.0","4.13.0","4.12.1","4.12.0","4.11.1","4.11.0","4.10.1","4.10.0","4.9.2","4.9.1","4.9.0","4.8.0","4.7.0","4.6.0","4.5.1","4.5.0","4.4.1","4.4.0","4.3.0","4.2.0","4.1.3","4.1.2","4.1.1","4.1.0","4.0.0","4.0.0-beta.14","4.0.0-beta.13","4.0.0-beta.12","4.0.0-beta.11","4.0.0-beta.10","4.0.0-beta.9","4.0.0-beta.8","4.0.0-beta.7","4.0.0-beta.6","3.8.3","3.8.2","3.8.1","3.8.0","3.8.0-beta1","3.7.1","3.7.0","3.6.2","3.6.1","3.6.0","3.6.0-beta1","3.5.3","3.5.2","3.5.1","3.5.0","3.5.0-beta.3","3.5.0-beta2","3.5.0-beta1","3.4.2","3.4.1","3.4.0","3.4.0-beta1","3.3.2","3.3.1","3.3.0","3.2.1","3.2.0","3.1.1","3.1.0","3.0.0","3.0.0-rc1","3.0.0-beta3","3.0.0-beta2","3.0.0-beta1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54562.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}