CVE-2026-48050

Arc is an open, SQL-native time-series database for telemetry. Versions prior to 26.06.1 register Go's net/http/pprof handlers at /debug/pprof/* via app.Use(pprof.New()) in internal/api/server.go, and /debug/pprof is added to PublicPrefixes in cmd/arc/main.go. The auth middleware short-circuits before the token check on prefix match, so the endpoints are reachable without any authentication. Version 26.06.1 contains a patch. Some workarounds are available. Block /debug/pprof* at a reverse proxy / load balancer in front of Arc, restrict Arc's API port to known-trusted networks via firewall rules, and/or patch the running build: comment out app.Use(pprof.New()) in internal/api/server.go and rebuild.