{"id":"CVE-2026-47684","revision":"8ba5512e195d4d44b450108436ec5563","records":[{"revision":"8ba5512e195d4d44b450108436ec5563","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-47684","aliases":[],"title":"Sync-in Server: SSRF protection bypass via IPv4-mapped IPv6 addresses in regExpPrivateIP","description":"Sync-in Server is a secure, open-source platform for file storage, sharing, collaboration, and syncing. Prior to version 2.3.0, the private IP blocklist regex used in the URL download feature does not match IPv4-mapped IPv6 addresses (e.g. ::ffff:127.0.0.1), allowing SSRF protection to be bypassed on dual-stack systems. Version 2.3.0 fixes the issue.","state":0,"publishedAt":"2026-06-16T14:31:30.807+00:00","modifiedAt":"2026-06-16T17:10:12.548+00:00","affected":[{"ecosystem":"Vendor product","name":"server","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Sync-in\",\n                    \"product\": \"server\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 2.3.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","score":7.7,"severity":"HIGH"}],"references":["https://github.com/Sync-in/server/security/advisories/GHSA-q4x5-8cj6-52wg","https://github.com/Sync-in/server/releases/tag/v2.3.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-47684","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-47684","identifiers":["CVE-2026-47684"]},"retained":false,"historicalAffected":[]}],"coverage":[]}