{"items":[{"id":"NVI-00014075","kind":"vulnerability","title":"@sync-in/server vulnerable to TOTP Brute-Force via `POST /api/app/sync/register`","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-274f-6w77-8qm9","CVE-2026-58271"],"plain_summary":"GitHub lists this reviewed advisory for @sync-in/server. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-3e9224cc617e8778b3e8b72ce0900875"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-09-22T14:44:46.000Z","value":"6.8 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-3e9224cc617e8778b3e8b72ce0900875"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-3e9224cc617e8778b3e8b72ce0900875","url":"https://github.com/advisories/GHSA-274f-6w77-8qm9","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-274f-6w77-8qm9","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T14:29:31.527Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-3e9224cc617e8778b3e8b72ce0900875"],"technology":"@sync-in/server","known_exclusions":[],"conditions_summary":"**Affected component:** Sync-in Server v2.3.0, `POST /api/app/sync/register`.\n\n**Required attacker capability:** Valid login and password for a TOTP-enabled account with desktop sync permission.\n\n## Summary\n\n`POST /api/app/sync/register` accepts credentials and a TOTP code to register a desktop sync client. In the vulnerable version, on a failed TOTP attempt, `SyncClientsManager.register()` called `updateAccesses(user, ip, false)`, which hit a freeze branch that wrote `passwordAttempts` back unchanged. The counter never reached `USER_MAX_PASSWORD_ATTEMPTS` (10), so the account lockout gate never fired for repeated TOTP failures through this endpoint.\n\nA successful TOTP guess registers a sync client and returns a `{clientId, clientToken}` pair, provided the account has the required desktop app permission and the registration payload is valid. The token can then be exchanged via `POST /api/app/sync/auth/cookie` for an authenticated session. While the guessed TOTP code is still valid, and because the attacker already knows the password, the attacker can also call `POST /api/auth/2fa/disable` to remove MFA.\n\n## Details\n\nThe endpoint is declared at `sync.controller.ts` line 71. `@AuthTo","public_affected_ranges":["<= 2.3.0"]}],"null_published_at":"2026-11-02T10:00:37.203Z","source_updated_at":"2026-09-22T14:44:46.000Z","source_disclosed_at":"2026-09-22T14:44:43.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-01T14:29:31.527Z"}],"next_cursor":null,"snapshot_revision":"42594"}