CVE-2026-47684
CVE-2026-47684 · Sync-in Server: SSRF protection bypass via IPv4-mapped IPv6 addresses in regExpPrivateIP
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 7.7 · High · EPSS 0.2% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
server
- Versions
- < 2.3.0: Affected
No fix published
@sync-in/server npm
- Affected ranges
- SEMVER: < 2.3.0
Update to 2.3.0