CVE-2026-41161

Description

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.

References

• https://github.com/Sync-in/server/releases/tag/v2.2.0
• https://github.com/Sync-in/server/security/advisories/GHSA-43fj-qp3h-hrh5