npm package report

Is msgpack5 safe?

1 known vulnerability, worst severity MODERATE.

cvss

6.7

how bad it is if exploited, out of 10

epss

1.6%

chance of exploitation in the next 30 days

xyz score

not scored

CyberXYZ composite, out of 10

fig. 01 — GHSA-gmjw-49p4-pcfm, the advisory selected below

// advisories

GHSA-gmjw-49p4-pcfm

MODERATECVE-2021-21368

The issue is as follows: when msgpack5 decodes a map containing a

// dependencies

0 direct

// ai model usage

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

Checked 2026-09-22 at 00:38 UTC. The most recent advisory here was published 2021-03-12. Updated continuously from NVD, GHSA, OSV and CNA feeds.

Is msgpack5 safe? npm package security report | CyberXYZ