{"cve":"CVE-2026-58269","nvd":{"published":"2026-09-21T20:17:26.837","modified":"2026-09-24T23:17:12.460","status":"Deferred","description":"Sync-in Server is an open-source platform for file storage, sharing, collaboration, and syncing. Prior to version 2.4.0, `POST /api/auth/token` authenticates with username and password only, then calls `getTokens()`, which returns full access and refresh JWTs without checking whether the account has TOTP 2FA enabled. An attacker with stolen or phished credentials can bypass 2FA in a single request. The parallel login endpoint (`POST /api/auth/login`) correctly enforces 2FA by calling `setCookies(user, res, true)`, which gates on `user.twoFaEnabled`. Version 2.4.0 patches the issue.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","score":8.1},"cwes":["CWE-288"],"references":["https://github.com/Sync-in/server/security/advisories/GHSA-92cr-jxw4-5wjg","https://github.com/Sync-in/server/security/advisories/GHSA-92cr-jxw4-5wjg"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:55:23.253742848+00:00"},"epss":{"cve":"CVE-2026-58269","score":0.00274,"percentile":0.19842,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-92cr-jxw4-5wjg","url":"https://osv.dev/vulnerability/GHSA-92cr-jxw4-5wjg","summary":"Sync-in Server has a complete 2FA Bypass via `POST /api/auth/token`","modified":"2026-09-22T15:00:48.899564340Z","packages":[{"ecosystem":"npm","name":"@sync-in/server","purl":"pkg:npm/%40sync-in/server","ranges":["<2.4.0"],"fixed":["2.4.0"]}]}],"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."]}