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High, CVSS 8.6

@actions/download-artifact has an Arbitrary File Write via artifact extraction

GHSA-cxww-7g56-2vh6

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (actions/download-artifact 4.1.3), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
8.6 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N · score source
EPSS
No dated EPSS signal available.
Source description

As published by the source; long descriptions are shortened.

Impact Versions of actions/download-artifact before 4.1.3 are vulnerable to arbitrary file write when downloading and extracting a specifically crafted artifact that contains path traversal filenames. Patches Upgrade to version 4.1.3 or higher. Alternatively use 'v4' tag which points to the latest and secure version. References - https://snyk.io/research/zip-slip-vulnerability - https://github.com/actions/download-artifact/releases/tag/v4.1.3 - https://github.com/actions/download-artifact/pull/299 CVE CVE-2024-42471 Credits Justin Taft from Google

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-cxww-7g56-2vh6

Agent brief

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# Patch Next advisory brief: GHSA-cxww-7g56-2vh6

Advisory: @actions/download-artifact has an Arbitrary File Write via artifact extraction
IDs: GHSA-cxww-7g56-2vh6
Record: https://patchnext.com/advisories/ghsa-cxww-7g56-2vh6 (revision 1, source checked 26 Oct 2026, 17:08 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 8.6)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: actions/download-artifact 4.1.3. A vendor fix does not mean a deployment is fixed.

## Affected components
- GitHub Actions actions/download-artifact: affected >= 4.0.0, < 4.1.3; fixed in 4.1.3

## Suggested inspection (read-only)
- GitHub Actions actions/download-artifact: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on actions/download-artifact.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-cxww-7g56-2vh6 (GitHub-reviewed advisory GHSA-cxww-7g56-2vh6 lists affected ranges: GitHub Actions actions/download-artifact >=4.0.0 <4.1.3)

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