Sync-in Server is a secure, open-source platform for file storage, sharing, collaboration, and syncing.

Code

The project this record applies to. Exploit listings stay in References.

• Repository · github.com

Timeline

Detection, updates, and resolution for this record.

1. May 8, 2026 · NIST NVD

   Detected

   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.

2. Jun 17, 2026 · NIST NVD

   Updated

   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

• cpe sync-in/sync-in serverversion unspecified

Sources

• CVE.orgVulnerability recordCVE-2026-41161

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2026-41161

  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 applicatio

  nvd.nist.gov

References

• Patch · github.com
• Vendor Advisory · github.com