Description
fastify-cli starts the Node.js Inspector when a debug flag is used, but it ignores the explicit bind address the user supplies and binds the Inspector to a broadly reachable address instead of the intended loopback. As a result the debugging interface can be exposed beyond the local machine, and because the Inspector protocol allows arbitrary code evaluation, a remote party that reaches it can achieve remote code execution on the developer's machine. This affects fastify-cli from 1.5.0 up to 8.0.1. Users should upgrade to fastify-cli 8.0.1, which honors the configured Inspector bind address.
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Remediation
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Tracking
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Advisories
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References
History
Tue, 08 Sep 2026 13:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | fastify-cli starts the Node.js Inspector when a debug flag is used, but it ignores the explicit bind address the user supplies and binds the Inspector to a broadly reachable address instead of the intended loopback. As a result the debugging interface can be exposed beyond the local machine, and because the Inspector protocol allows arbitrary code evaluation, a remote party that reaches it can achieve remote code execution on the developer's machine. This affects fastify-cli from 1.5.0 up to 8.0.1. Users should upgrade to fastify-cli 8.0.1, which honors the configured Inspector bind address. | |
| Title | fastify-cli vulnerable to remote code execution via ignored explicit Inspector bind address | |
| Weaknesses | CWE-1327 | |
| References |
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| Metrics |
cvssV3_1
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Subscriptions
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Status: PUBLISHED
Assigner: openjs
Published:
Updated: 2026-09-08T12:50:23.633Z
Reserved: 2026-08-17T13:48:54.386Z
Link: CVE-2026-75021
No data.
Status : Received
Published: 2026-09-08T13:17:24.010
Modified: 2026-09-08T13:17:24.010
Link: CVE-2026-75021
No data.
OpenCVE Enrichment
No data.
Weaknesses
-
CWE-1327
Binding to an Unrestricted IP Address