medium5.3
CVE-2026-41161
Sync-in Server is a secure, open-source platform for file storage, sharing, collaboration, and syncing.
Impact
Sync-in Server is a secure, open-source platform for file storage, sharing, collaboration, and syncing. Prior to version 2.2.0, the /api/auth/login endpoint contains a logic flaw that allows unauthenticated remote attackers to enumerate valid usernames by measuring the application's response time. This issue has been patched in version 2.2.0.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | @sync-in/server | <= 2.1.0 | 2.2.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Sync-In | Sync-In Server | before 2.2.0 |