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.
Fix
Patch, vendor advisory and mitigation references on NVD 3
- https://github.com/Sync-in/server/releases/tag/v2.2.0 Patch, Product
- https://github.com/Sync-in/server/security/advisories/GHSA-43fj-qp3h-hrh5 Vendor Advisory
- https://github.com/Sync-in/server/security/advisories/GHSA-43fj-qp3h-hrh5 Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 6.9 · sync-inNVD modified 2026-10-26 19:10
Affected (CPE criteria) 1
cpe:2.3:a:sync-in:sync-in_server:*:*:*:*:*:*:*:*