CVE•Published 2026-05-08•Modified 2026-05-12•0 articles on news•5 live references•NVD data
CVE-2026-41161Sync-in · Sync-in_server
Vulnerability data via NVD (ingested)
CVSS v3.1
5.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS percentile
—
Weaknesses (CWE)
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.
Timeline
Published 2026-05-08
Modified 2026-05-12
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-41161Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Sync-in Sync-in Server"All exposed Sync-in Sync-in Server instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Sync-in Server"HTTP body or banner mentions "Sync-in Server" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-41161Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-41161Censys host search filtered to this CVE id.
grep.app
CVE-2026-41161Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-41161GitHub code search for direct mentions.
Google dork
"CVE-2026-41161" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-41161 on GitHub.
We haven't classified any articles referencing CVE-2026-41161 yet. The external references above still apply.