CVE-2026-44902

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

State: Published
Severity: 7.5 High
Published: May 27, 2026
Updated: May 28, 2026
Reserved: May 7, 2026

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.

Scores

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

Weaknesses

CWE-755 Improper Handling of Exceptional Conditions

Affected Products

Product	Versions
opentelemetry-jsopen-telemetry	< 0.217.0Affected
exporter-prometheus@opentelemetry	< 0.217.0Affected
sdk-node@opentelemetry	< 0.217.0Affected
auto-instrumentations-node@opentelemetry	< 0.75.0Affected

References

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

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