CVE-2026-47684

HIGH SEVERITY

CVSS Score & Metrics

Base Score

7.7 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N                                    

Vulnerability 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.

Vulnerability Details

Published Date

June 05, 2026

Last Modified

June 17, 2026

CWE ID

CWE-918

Source

GitHub

Vendor

npm

Product

@sync-in/server

External References

https://github.com/Sync-in/server/security/advisories/GHSA-q4x5-8cj6-52wg
https://github.com/Sync-in/server/releases/tag/v2.3.0
https://github.com/advisories/GHSA-q4x5-8cj6-52wg

CVE-2026-47684

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

Discussion (0)

Add Comment