projectdiscovery/nuclei · error · errRuntimeTerminationTimeout

nuclei js runtime: program failed to terminate after interru

Error message

nuclei js runtime: program failed to terminate after interrupt

What it means

Error "nuclei js runtime: program failed to terminate after interrupt" thrown in projectdiscovery/nuclei.

Source

Thrown at pkg/js/compiler/pool.go:69

	"github.com/projectdiscovery/nuclei/v3/pkg/protocols/common/protocolstate"
	"github.com/projectdiscovery/nuclei/v3/pkg/utils/json"
)

const (
	exportToken   = "Export"
	exportAsToken = "ExportAs"
)

// errRuntimeTerminationTimeout is returned by session when the
// goroutine running goja.Runtime.RunProgram fails to terminate within the
// grace period after an interrupt was raised. When this error is returned
// the runtime MUST NOT be touched (no cleanup, no reuse, no Put back to
// the pool) because the orphaned goroutine is still operating on it; any
// concurrent access would race with goja's per-runtime state and can
// trigger a fatal "concurrent map read and map write" runtime panic.
//
// See https://github.com/projectdiscovery/nuclei/issues/7376.
var errRuntimeTerminationTimeout = errors.New("nuclei js runtime: program failed to terminate after interrupt")

var (
	lazyRegistryInit = sync.OnceFunc(func() {
		// autoregister console node module with default printer it uses gologger backend
		require.RegisterNativeModule(console.ModuleName, console.RequireWithPrinter(goconsole.NewGoConsolePrinter()))
	})
	pooljsc    *syncutil.AdaptiveWaitGroup
	lazySgInit = sync.OnceFunc(func() {
		pooljsc, _ = syncutil.New(syncutil.WithSize(PoolingJsVmConcurrency))
	})
	sgResizeCheck = func(ctx context.Context) {
		// resize check point
		if pooljsc.Size != PoolingJsVmConcurrency {
			if err := pooljsc.Resize(ctx, PoolingJsVmConcurrency); err != nil {
				gologger.Warning().Msgf("Could not resize workpool: %s\n", err)
			}
		}
	}

View on GitHub (pinned to 265b3a3dec)

When it happens

Trigger: Thrown at pkg/js/compiler/pool.go:69 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of projectdiscovery/nuclei@265b3a3dec (2026-08-15). Data as JSON: /api/errors/c35ae9ac2c40e063. Report an issue: GitHub.