CVE-2024-42471: GitHub Actions/artifact

High severity, CVSS 7.5. EPSS: 3.2% chance of exploitation in the next 30 days.

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.

Affected products

• GitHub Actions/artifact: from 2.0.0, before 2.1.7 (fixed in 2.1.7)
• GitHub Actions Toolkit: affected versions not specified

Published 2024-09-02. Last modified 2026-06-17.