npm package report

Is @clerk/fastify safe?

1 known vulnerability, worst severity HIGH.

cvss
7.5

how bad it is if exploited, out of 10

epss
0.20%

chance of exploitation in the next 30 days

xyz score
4.2

CyberXYZ composite, out of 10

fig. 01 — GHSA-9mp4-77wg-rwx9, the advisory selected below

// advisories

GHSA-9mp4-77wg-rwx9

HIGHCVE-2025-53548

Applications that use the verifyWebhook() helper to verify incoming Clerk webhooks are susceptible to accepting improperly signed webhook events.

Affected
>= 2.3.0, < 2.4.4
Fixed in
2.4.4
Weakness
CWE-345
Published
2025-07-09
Source
github

GHSANVDMITREreference

// dependencies

0 direct

Sign in for dependency paths and remediation

// ai model usage

Tracked for PyPI packages. HuggingFace models declare Python dependencies, so npm packages are not covered.

Checked 2026-09-22 at 03:28 UTC. The most recent advisory here was published 2025-07-09. Updated continuously from NVD, GHSA, OSV and CNA feeds.

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Is @clerk/fastify safe? npm package security report | CyberXYZ