Vulnerability · Published May 27, 2026 · Assigned by GitHub_M
CVE-2026-44902opentelemetry-js: Prometheus exporter process crash via malformed HTTP request
High 7.5
In plain English
A high-severity security flaw in opentelemetry-js from open-telemetry. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | @opentelemetry/auto-instrumentations-node | 0.75.0 | GHSA-q7rr-3cgh-j5r3 |
| npm | @opentelemetry/exporter-prometheus | 0.217.0 | GHSA-q7rr-3cgh-j5r3 |
| npm | @opentelemetry/sdk-node | 0.217.0 | GHSA-q7rr-3cgh-j5r3 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| open-telemetry | opentelemetry-js | < 0.217.0 |
| @opentelemetry | exporter-prometheus | < 0.217.0 |
| @opentelemetry | sdk-node | < 0.217.0 |
| @opentelemetry | auto-instrumentations-node | < 0.75.0 |
Weakness: CWE-755 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H