GHSA-mfwh-5m23-j46w

Source

https://github.com/advisories/GHSA-mfwh-5m23-j46w

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/10/GHSA-mfwh-5m23-j46w/GHSA-mfwh-5m23-j46w.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-mfwh-5m23-j46w

Aliases

CVE-2020-15228

Published

2020-10-01T17:16:20Z

Modified

2026-05-04T08:46:03.568992698Z

Severity

3.5 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N CVSS Calculator

Summary

Environment Variable Injection in GitHub Actions

Details

Impact

The @actions/core npm module addPath and exportVariable functions communicate with the Actions Runner over stdout by generating a string in a specific format. Workflows that log untrusted data to stdout may invoke these commands, resulting in the path or environment variables being modified without the intention of the workflow or action author.

Patches

The runner will release an update that disables the set-env and add-path workflow commands in the near future. For now, users should upgrade to @actions/core v1.2.6 or later, and replace any instance of the set-env or add-path commands in their workflows with the new Environment File Syntax. Workflows and actions using the old commands or older versions of the toolkit will start to warn, then error out during workflow execution.

Workarounds

None, it is strongly suggested that you upgrade as soon as possible.

For more information

If you have any questions or comments about this advisory: * Open an issue in Actions Toolkit

Database specific

{
    "github_reviewed": true,
    "github_reviewed_at": "2020-10-01T17:16:10Z",
    "cwe_ids": [
        "CWE-20",
        "CWE-77"
    ],
    "severity": "LOW",
    "nvd_published_at": "2020-10-01T18:15:00Z"
}

References

Affected packages

npm / @actions/core

Package

Name: @actions/core; View open source insights on deps.dev
Purl: pkg:npm/%40actions/core

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.2.6

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/10/GHSA-mfwh-5m23-j46w/GHSA-mfwh-5m23-j46w.json"