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Tool Directory

CVE-2024-42471

HighPublished

Arbitrary File Write via artifact extraction in actions/artifact

Published: Sep 2, 2024
Updated: Aug 27, 2025
Assigning CNA: GitHub_M
Evidence observed: Apr 30, 2025

Primary CVSS

7.5/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS probability estimate

3.2%

Low · next 30 days

Percentile: 87.7%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

actions/artifact is the GitHub ToolKit for developing GitHub Actions. Versions of `actions/artifact` on the 2.x branch before 2.1.2 are vulnerable to arbitrary file write when using `downloadArtifactInternal`, `downloadArtifactPublic`, or `streamExtractExternal` for extracting a specifically crafted artifact that contains path traversal filenames. Users are advised to upgrade to version 2.1.2 or higher. There are no known workarounds for this issue.

Sources

CVE-2024-42471-PoCPoC
unzip-stream file write/overwrite vulnerability
unzip-stream 0.3.1 - Arbitrary File WriteExploit
cybersploit · nodejs · Apr 30, 2025

Responsible use

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