CVE-2026-44902: opentelemetry-js is the OpenTelemetry JavaScript Client

This week

HIGH 7.5REMOTEUPGRADEUPGRADEUPGRADE

CVE-2026-44902 is a high-severity flaw (CVSS 7.5) affecting opentelemetry\/auto-instrumentations-node, opentelemetry\/exporter-prometheus, opentelemetry\/sdk-node. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 59%)
CISA exploited list	No
Weakness	CWE-755
Published	2026-05-27
Last modified	2026-08-27

Publisher (CNA): GitHub, Inc. · Vendor: opentelemetry

Last updated 2026-08-27 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-27 15:16 UTCPublished CVE record published
2026-08-27 16:16 UTCUpdated Record last modified

opentelemetry opentelemetry\/auto-instrumentations-node UPGRADE

Affected: < 0.75.0

Fixed in: 0.75.0

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls opentelemetryauto-instrumentations-node

2. UPGRADE to 0.75.0

npm install opentelemetryauto-instrumentations-node@">=0.75.0"

opentelemetry opentelemetry\/exporter-prometheus UPGRADE

Affected: < 0.217.0

Fixed in: 0.217.0

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls opentelemetryexporter-prometheus

2. UPGRADE to 0.217.0

npm install opentelemetryexporter-prometheus@">=0.217.0"

opentelemetry opentelemetry\/sdk-node UPGRADE

Affected: < 0.217.0

Fixed in: 0.217.0

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls opentelemetrysdk-node

2. UPGRADE to 0.217.0

npm install opentelemetrysdk-node@">=0.217.0"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-44902?

opentelemetry\/auto-instrumentations-node: upgrade to 0.75.0; opentelemetry\/exporter-prometheus: upgrade to 0.217.0; opentelemetry\/sdk-node: upgrade to 0.217.0. Exact commands for each OS are on this page.

Is CVE-2026-44902 being exploited?

CVE-2026-44902 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-44902 affect?

CVE-2026-44902 affects opentelemetry\/auto-instrumentations-node, opentelemetry\/exporter-prometheus, opentelemetry\/sdk-node. Severity is high (CVSS 7.5). 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 erro

How urgent is CVE-2026-44902?

Priority 46/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Node.js vulnerabilities · Prometheus vulnerabilities

References

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