Billing: nginx refuses /internal/ and /metrics case-insensitively (#27)

OP OpenVibers committed 10 Oct 2026 · 1ff090930f · 1 file, +1 −1

nginx config only. Express routes case-insensitively, so a case variant such as `/Internal/events` or `/METRICS` slipped past the case-sensitive `location /internal/ { return 404; }` and `location = /metrics { return 404; }` blocks and reached the app. Those paths were still guarded in the app (the Events signature, the loopback check on metrics). Both blocks are now `location ~* ^/internal(/|$)` and `location ~* ^/metrics(/|$)`. The independent security reviews of 2026-10-09/10 found this in several services; this applies it network-wide.

Changes

ddiff --git a/deploy/nginx/billing.openvibe.network.conf b/deploy/nginx/billing.openvibe.network.conf
iindex e2d5eb5..fcb04ff 100644
---- a/deploy/nginx/billing.openvibe.network.conf
++++ b/deploy/nginx/billing.openvibe.network.conf
@@@ -60,7 +60,7 @@ server {
  
      # ── Prometheus metrics: host-local scrapers only (http://127.0.0.1:4600/metrics). Node also
      # answers 404 to any request a proxy relayed.
--    location = /metrics { return 404; }
++    location ~* ^/metrics(/|$) { return 404; }
  
      # The service API: loopback only. Never proxied from the public host.
      location ^~ /api/v1 { deny all; }