Denial of Service Vulnerability in OpenTelemetry JavaScript Client
CVE-2026-44902

7.5HIGH

Key Information:

Vendor

Open-telemetry

Status
Opentelemetry-js
Exporter-prometheus
Sdk-node
Auto-instrumentations-node
Vendor
CVE Published:
27 May 2026

What is CVE-2026-44902?

The OpenTelemetry JavaScript Client has a vulnerability that allows a single malformed HTTP request to crash any Node.js process utilizing the Prometheus exporter. The issue stems from a lack of error handling in the metrics endpoint at the default address 0.0.0.0:9464, where an invalid URI leads to an uncaught TypeError that halts the process entirely. This flaw has been addressed in version 0.217.0.

Affected Version(s)

auto-instrumentations-node < 0.75.0

exporter-prometheus < 0.217.0

opentelemetry-js < 0.217.0

References

https://github.com/open-telemetry/opentelemetry-js/securi...
x_refsource_CONFIRM

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.