CVE-2026-75021
fastify-cli vulnerable to remote code execution via ignored explicit Inspector bind address
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-1327 |
| Vendor | fastify-cli |
| Product | fastify-cli |
| Published | Sep 8, 2026 |
| Last Updated | Sep 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
fastify-cli / fastify-cli
1.5.0 < 8.0.1
References
Credits
🔍 Universe-Theori mcollina UlisesGascon