CVE-2026-44902

opentelemetry-js: Prometheus exporter process crash via malformed HTTP request

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

open-telemetry · @opentelemetry · opentelemetry-js · exporter-prometheus · sdk-node · auto-instrumentations-node

CVSS v3.1 GITHUB

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.49% chance of exploitation in the next 30 days, 41st percentile

Published

2026-05-27

Updated

2026-05-28

Proof-of-concept exploits (1)

• advisories/GHSA-q7rr-3cgh-j5r3

Security advisories

• open-telemetry/opentelemetry-js/security/advisories/GHSA-q7rr-3cgh-j5r3

References

• CVE Record
• NVD entry