CVE-2026-44902 PUBLISHED

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

Assigner: GitHub_M
Reserved: 07.05.2026 Published: 27.05.2026 Updated: 27.05.2026

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.

Metrics

CVSS 3.1

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

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	None
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	open-telemetry
Product	opentelemetry-js
Versions	Version < 0.217.0 is affected

Vendor	@opentelemetry
Product	exporter-prometheus
Versions	Version < 0.217.0 is affected

Vendor	@opentelemetry
Product	sdk-node
Versions	Version < 0.217.0 is affected

Vendor	@opentelemetry
Product	auto-instrumentations-node
Versions	Version < 0.75.0 is affected

References

https://github.com/open-telemetry/opentelemetry-js/security/advisories/GHSA-q7rr-3cgh-j5r3

Problem Types

CWE-755: Improper Handling of Exceptional Conditions CWE