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… or crash SanitizeForJSON walked the AsyncLocalStorage state without any limits while the captured thread was interrupted. Shared references were copied once per path, linked structures (e.g. Node timer lists reachable from a Sentry client) recursed once per node with an O(depth) cycle check, and exceptions from the walk escaped into the interrupted JavaScript. - Limit depth (10), entries per container (1000), values read (20000) and string length (1 MiB); cut data is replaced by visible markers - Copy own enumerable string keys only, into null-prototype containers so inherited toJSON hooks can't bypass the limits - Replace Proxies by "[Proxy]" without running traps - Catch exceptions during state serialization and keep V8 execution termination
Node 18 on macOS reports resourceUsage().maxRSS in bytes, so the RSS growth check read about 14 MB as 14 GB.
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SanitizeForJSON walked the AsyncLocalStorage state without any limits while the captured thread was interrupted. Shared references were copied once per path, linked structures (e.g. Node timer lists reachable from a Sentry client) recursed once per node with an O(depth) cycle check, and exceptions from the walk escaped into the interrupted JavaScript.