CVE-2026-75021Patch

LOWCVSS 8.1 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD 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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0.5/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-1327

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

Patch or workaround signal is available
1 mentions across 1 observed day

What's happening

Patch or workaround mentioned in 1 signal
Technical details provided in 1 signal
1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Patch

1100.0%

Referenced assets1 URL

By indicator

https://github.com/fastify/fastify-cli/security/advisories/GHSA-88v4-3ph7-r88m

Full discourse1 post

Ulises Gascón@kom_25646d
Patch
🚨 High-severity security fix in fastify-cli@8.0.1 just released! Patches CVE-2026-75021: fastify-cli vulnerable to remote code execution via ignored explicit Inspector bind address https://github.com/fastify/fastify-cli/security/advisories/GHSA-88v4-3ph7-r88m
Post summary
The message announces the release of a patch for CVE‑2026‑75021, specifying it as a remote code execution vulnerability in fastify‑cli with an ignored Inspector bind address.
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