High · published May 27, 2026
opentelemetry-js is the OpenTelemetry JavaScript Client. Prior to 0.217.0, a single malformed HTTP request crashes any Node.js process running the OpenTelemetry JS Prometheus exporter. The metrics endpoint (default 0.0.0.0:9464) has no error handling around URL parsing, so a request with an invalid URI causes an uncaught TypeError that terminates the process. This vulnerability is fixed in 0.217.0.
| Product | Versions | Fixed in |
|---|---|---|
| opentelemetry/opentelemetry\/auto-instrumentations-node | < 0.75.0 | 0.75.0 |
| opentelemetry/opentelemetry\/exporter-prometheus | < 0.217.0 | 0.217.0 |
| opentelemetry/opentelemetry\/sdk-node | < 0.217.0 | 0.217.0 |