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CVE-2026-41161— Username Enumeration via Timing Attack

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I. Basic Information for CVE-2026-41161

Vulnerability Information
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Vulnerability Title
Username Enumeration via Timing Attack
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过时间差异性导致的信息暴露
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
Sync-inserver < 2.2.0 -

II. Public POCs for CVE-2026-41161

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III. Intelligence Information for CVE-2026-41161

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IV. Related Vulnerabilities

Same product: server
Same weakness: CWE-208

V. Comments for CVE-2026-41161

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