{"answers":{"affected":"2 open source packages ship an affected version, including @sync-in/server. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-41161 exists.","fix":"Upgrade @sync-in/server to 2.2.0 or later.","what":"CVE-2026-41161 is a medium-severity vulnerability in Sync-in server, published on 8 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-41161 and fix it if it is affected.\n\nWhat it is: CVE-2026-41161 is a medium-severity vulnerability in Sync-in server, published on 8 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-41161 exists.\n\nAffected packages and fixed versions:\n- @sync-in/server (npm): affected all versions; fixed in 2.2.0\n- @sync-in/server (npm): affected all versions; fixed in 2.2.0\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-41161/ (Markdown: https://insights.sbomify.com/CVE-2026-41161/index.md)","id":"CVE-2026-41161","markdown":"https://insights.sbomify.com/CVE-2026-41161/index.md","name":"CVE-2026-41161","record":{"aliases":["GHSA-43fj-qp3h-hrh5"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"File sync server","requires_auth":"none","summary":"Unauthenticated attackers can enumerate valid usernames by measuring response times on the login endpoint, exposing user account existence.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"sync-in_server","vendor":"sync-in"}],"cvss":{"score":6.9,"severity":"medium","source":"cna","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","version":"4.0"},"cwes":[{"id":"CWE-208","name":"Observable Timing Discrepancy"}],"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.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Username Enumeration via Timing Attack","id":"CVE-2026-41161","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":2,"n_references":2,"next":{"headline":"bubblewrap vulnerable to privilege escalation in setuid mode via ptrace","id":"CVE-2026-41163"},"packages":[{"ecosystem":"npm","fixed":["2.2.0"],"introduced":["0"],"last_affected":[],"package":"@sync-in/server","purl":null,"source":"GHSA-43fj-qp3h-hrh5"},{"ecosystem":"npm","fixed":["2.2.0"],"introduced":["0"],"last_affected":[],"package":"@sync-in/server","purl":"pkg:npm/%40sync-in/server","source":"GHSA-43fj-qp3h-hrh5"}],"prev":{"headline":"EspoCRM: Broken Access Control / IDOR in Note Pinning API allows unauthorized modification of notes","id":"CVE-2026-41160"},"products":["server"],"published":"2026-05-08","related":[{"cvss_score":6.1,"headline":"Sync-in Server has a stored cross-site scripting (XSS) vulnerability","id":"CVE-2025-67438","kev_date_added":null,"published":"2026-02-20"},{"cvss_score":5.3,"headline":"Path traversal in n/a","id":"CVE-2025-56869","kev_date_added":null,"published":"2025-09-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-11","vendors":["Sync-in"]},"summary":"Unauthenticated attackers can enumerate valid usernames by measuring response times on the login endpoint, exposing user account existence.","url":"https://insights.sbomify.com/CVE-2026-41161/"}