Server-side Request Forgery (SSRF) Affecting @sync-in/server package, versions <2.3.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published1 Jul 2026
- disclosed5 Jun 2026
- creditUnknown
Introduced: 5 Jun 2026
NewCVE-2026-47684 (opens in a new tab)How to fix?
Upgrade @sync-in/server to version 2.3.0 or higher.
Overview
@sync-in/server is a The secure, open-source platform for file storage, sharing, collaboration, and syncing
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) in the downloadFromUrl process due to insufficient validation of IPv4-mapped IPv6 addresses in the regExpPrivateIP regular expression. An attacker can access internal network resources by supplying a crafted URL that uses an IPv4-mapped IPv6 address, causing the server to bypass intended access restrictions.