9router: Mass assignment in PATCH /api/settings allows authenticated authorization downgrade

Summary The PATCH /api/settings endpoint writes the entire request body to persistent settings without a field whitelist. An authenticated user can set security-critical fields that are not meant to be modifiable here — notably requireLogin. Setting requireLogin: false disables authentication for...

9router: Mass assignment in PATCH /api/settings allows authenticated authorization downgrade

The PATCH /api/settings endpoint writes the entire request body to persistent settings without a field whitelist. An authenticated user can set security-critical fields that are not meant to be modifiable here — notably requireLogin. Setting requireLogin: false disables authentication for the who...

CVE-2026-56679

9Router (AI router & token saver) contains a mass-assignment vulnerability in PATCH /api/settings prior to version 0.5.4. The endpoint writes the entire request body to persistent settings without a field whitelist, enabling an authenticated user to modify security-critical fields such as require...