CVE-2026-56679 — 9Router: Mass assignment in PATCH /api/settings allows authenticated authorization downgrade
9Router is an AI router & token saver. Prior to 0.5.4, the PATCH /api/settings endpoint writes the entire request body to persistent settings without a field whitelist, allowing…
Published: 2026-07-15 · CVSS: 8.7 · CVSS 4.0
9Router is an AI router & token saver. Prior to 0.5.4, the PATCH /api/settings endpoint writes the entire request body to persistent settings without a field whitelist, allowing an authenticated user to set security-critical fields such as requireLogin and disable authentication for the whole application, exposing protected routes such as /api/keys and /api/providers to unauthenticated access. This issue is reported as fixed in version 0.5.4.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7