{"cve":"CVE-2026-54562","nvd":{"published":"2026-07-15T15:16:44.977","modified":"2026-07-15T18:15:13.373","status":"Deferred","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","score":6.5},"cwes":["CWE-918"],"references":["https://github.com/cloudreve/cloudreve/commit/aaebf317a78f2413d74afd66c21a1f3143711312","https://github.com/cloudreve/cloudreve/releases/tag/4.16.1","https://github.com/cloudreve/cloudreve/security/advisories/GHSA-x756-g4x3-c64m","https://github.com/cloudreve/cloudreve/security/advisories/GHSA-x756-g4x3-c64m"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:45:36.895656543+00:00"},"epss":{"cve":"CVE-2026-54562","score":0.00402,"percentile":0.34426,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-x756-g4x3-c64m","url":"https://osv.dev/vulnerability/GHSA-x756-g4x3-c64m","summary":"Cloudreve: Non-admin remote download users can SSRF loopback/internal services and read imported responses","modified":"2026-07-22T21:11:18.299628902Z","packages":[{"ecosystem":"Go","name":"github.com/cloudreve/Cloudreve/v4","purl":"pkg:golang/github.com/cloudreve/Cloudreve/v4","ranges":["<4.0.0-20260606025411-aaebf317a78f"],"fixed":["4.0.0-20260606025411-aaebf317a78f"]},{"ecosystem":"Go","name":"github.com/cloudreve/Cloudreve/v3","purl":"pkg:golang/github.com/cloudreve/Cloudreve/v3","ranges":["<=3.0.0-20250225100611-da4e44b77af4"],"fixed":[]}]},{"id":"GO-2026-6023","url":"https://osv.dev/vulnerability/GO-2026-6023","summary":"Cloudreve: Non-admin remote download users can SSRF loopback/internal services and read imported responses in github.com/cloudreve/Cloudreve","modified":"2026-07-22T21:00:24.276079994Z","packages":[{"ecosystem":"Go","name":"github.com/cloudreve/Cloudreve","purl":"pkg:golang/github.com/cloudreve/Cloudreve","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/cloudreve/Cloudreve/v3","purl":"pkg:golang/github.com/cloudreve/Cloudreve/v3","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/cloudreve/Cloudreve/v4","purl":"pkg:golang/github.com/cloudreve/Cloudreve/v4","ranges":["<4.0.0-20260606025411-aaebf317a78f"],"fixed":["4.0.0-20260606025411-aaebf317a78f"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}