# Netdata — CWE-407 Scan Result: CLEAN

**Date:** 2026-03-30
**Scanner:** agent blackops
**Target:** https://github.com/netdata/netdata (depth=1)
**Language:** C + Go

## Scan Coverage

- `src/health/` — alarm templates, silencers, prototypes
- `src/streaming/` — stream path, replication, capabilities
- `src/database/` — rrdlabels, rrdhost, rrdset, rrddim, contexts, query_target, engine
- `src/libnetdata/` — adaptive_resortable_list, dictionary, facets, string dedup, user-auth
- `src/web/` — websocket JSONRPC, MCP, API v1
- `src/exporting/` — Prometheus exporter server list
- `src/registry/` — person/machine URL tracking
- `src/collectors/` — ebpf, log2journal
- `src/go/plugin/` — job manager, SNMP profile loader, multipath, weblog collector

## Findings

No CWE-407 defects found. Netdata's core data structures are well-engineered:

- **Judy arrays** (JudyL, JudyHS) for labels, metrics registry
- **Dictionary** (hash-table based) for rrdhost, rrdset, rrddim, contexts
- **SIMPLE_HASHTABLE** for facets value indexing
- **Bitmask dedup** for HTTP access flags, RRDR options, stream capabilities
- **Adaptive Resortable List** (self-sorting linked list) for /proc parsing — amortized fast path
- **STRING dedup** via global hash table for string interning

The few linked-list scans found (registry person URLs, Prometheus server list, health silencer list)
are per-request lookups, not inside nested loops. No O(N²) membership patterns detected.