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bdu:2024-11233

EUVD-2026-206008

fkie_cve-2024-54132

The GitHub CLI is GitHub’s official command line tool. A security vulnerability has been identified in GitHub CLI that could create or overwrite files in unintended directories when users download a malicious GitHub Actions workflow artifact through gh run download. This vulnerability stems from a GitHub Actions workflow artifact named .. when downloaded using gh run download. The artifact name and --dir flag are used to determine the artifact’s download path. When the artifact is named .., the resulting files within the artifact are extracted exactly 1 directory higher than the specified --dir flag value. This vulnerability is fixed in 2.63.1.

GHSA-2m9h-r57g-45pj — Downloading malicious GitHub Actions workflow artifact results in path traversal vulnerability

Affected: Go: github.com/cli/cli/v2, Go: github.com/cli/cli

### Summary

A security vulnerability has been identified in GitHub CLI that could create or overwrite files in unintended directories when users download a malicious GitHub Actions workflow artifact through `gh run download`.

### Details

This vulnerability stems from a GitHub Actions workflow artifact named `..` when downloaded using `gh run download`. The artifact name and `--dir` flag are used to determine the artifact’s download path. When the artifact is named `..`, the resulting files within the artifact are extracted exactly 1 directory higher than the specified `--dir` flag value.

In `2.63.1`, `gh run download` will not download artifacts named `..` and `.` and instead exit with the following error message:

``` error downloading ..: would result in path traversal ```

### Impact

Successful exploitation heightens the risk of local path traversal attack vectors exactly 1 directory higher than intended.

### Remediation and Mitigation

1. Upgrade `gh` to `2.63.1` 2. Implement additional validation to ensure artifact filenames do not contain potentially dangerous patterns, such as `..`, to prevent path traversal risks.

msrc_CVE-2024-54132 — GitHub CLI allows downloading malicious GitHub Actions workflow artifact to result in path traversal vulnerability

msrc_CVE-2024-54132

openSUSE-SU-2024:14567-1 — govulncheck-vulndb-0.0.20241209T183251-1.1 on GA media

govulncheck-vulndb-0.0.20241209T183251-1.1 on GA media

UBUNTU-CVE-2024-54132

Affected: Ubuntu:Pro:24.04:LTS: gh