CVE-2026-44902: Opentelemetry Opentelemetry/auto-Instrumentations-Node

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

• Opentelemetry Opentelemetry/auto-Instrumentations-Node: before 0.75.0 (fixed in 0.75.0)
• Opentelemetry Opentelemetry/exporter-Prometheus: before 0.217.0 (fixed in 0.217.0)
• Opentelemetry Opentelemetry/sdk-Node: before 0.217.0 (fixed in 0.217.0)

Published 2026-05-27. Last modified 2026-08-27.