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.
Affected products
opentelemetry: opentelemetry\/auto-instrumentations-node; opentelemetry: opentelemetry\/exporter-prometheus; opentelemetry: opentelemetry\/sdk-node
References2
- github.com/open-telemetry/opentelemetry-js/security/advisories/… ExploitVendor Advisory
- github.com/open-telemetry/opentelemetry-js/security/advisories/… ExploitVendor Advisory
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 41 · as of 14 November 2026
- CWE
- CWE-755
Could this be exploited in your environment?
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