CVE-2026-41161
Published:May 08, 2026
Updated:May 16, 2026
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
https://github.com/Sync-in/server.git (GITHUB):
Affected version(s) >=v1.1.0 <v2.2.0Fix Suggestion:
Update to version v2.2.0@sync-in/server (NPM):
Affected version(s) >=1.0.0 <2.2.0Fix Suggestion:
Update to version 2.2.0@sync-in/server (NPM):
Affected version(s) >=1.0.0 <2.2.0Fix Suggestion:
Update to version 2.2.0Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Observable Timing Discrepancy
EPSS
Base Score:
0.04