{"cve":"CVE-2026-41161","nvd":{"published":"2026-05-08T14:16:33.093","modified":"2026-10-26T19:10:00.163","status":"Analyzed","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.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","score":6.9},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3},"cwes":["CWE-208"],"references":["https://github.com/Sync-in/server/releases/tag/v2.2.0","https://github.com/Sync-in/server/security/advisories/GHSA-43fj-qp3h-hrh5","https://github.com/Sync-in/server/security/advisories/GHSA-43fj-qp3h-hrh5"],"products":["sync-in:sync-in_server"],"source":"nvd","synced_at":"2026-10-26T19:31:02.781428341+00:00"},"epss":{"cve":"CVE-2026-41161","score":0.00333,"percentile":0.26302,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-43fj-qp3h-hrh5","url":"https://osv.dev/vulnerability/GHSA-43fj-qp3h-hrh5","summary":"Sync-in Server has Username Enumeration via Timing Attack","modified":"2026-05-12T17:16:56.945500Z","packages":[{"ecosystem":"npm","name":"@sync-in/server","purl":"pkg:npm/%40sync-in/server","ranges":["<2.2.0"],"fixed":["2.2.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}