CVE-2026-47684
High · 7.7CVSS
7.7
EPSS
0.4%
Published
Jun 16, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | @sync-in/server | 0 | 2.3.0 |
Related vulnerabilities
- GHSA-q4x5-8cj6-52wg Sync-in Server: SSRF protection bypass via IPv4-mapped IPv6 addresses in regExpPrivateIP Same vulnerability
- CVE-2026-41161 Sync-in Server is a secure, open-source platform for file storage, sharing… Also affects @sync-in/server
- GHSA-43fj-qp3h-hrh5 Sync-in Server has Username Enumeration via Timing Attack Also affects @sync-in/server
- GHSA-9jmq-xgjm-p8c2 Sync-in Server has a stored cross-site scripting (XSS) vulnerability Also affects @sync-in/server
- CVE-2025-67438 A Stored Cross-Site Scripting (XSS) vulnerability in Sync-in Server before 1.9.3 allows… Also affects @sync-in/server
- CVE-2026-114730 Roundcube Webmail 1.6.14 before 1.6.20 and 1.7.0 before 1.7.5 is affected by a… CWE-918
- CVE-2026-87953 Server-Side Request Forgery (SSRF) vulnerability in Drupal SAML SSO - Service Provider… CWE-918
- CVE-2026-114634 WWBN AVideo before 29.4.0 contains a blind server-side request forgery vulnerability in… CWE-918