CVE-2023-27581

See a problem?
Please try reporting it to the source first.
Source
https://nvd.nist.gov/vuln/detail/CVE-2023-27581
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-27581.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-27581
Aliases
Published
2023-03-13T20:19:23.350Z
Modified
2025-12-04T23:44:18.651451Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
github-slug-action vulnerable to arbitrary code execution
Details

github-slug-action is a GitHub Action to expose slug value of GitHub environment variables inside of one's GitHub workflow. Starting in version 4.0.0and prior to version 4.4.1, this action uses thegithub.head_ref` parameter in an insecure way. This vulnerability can be triggered by any user on GitHub on any workflow using the action on pull requests. They just need to create a pull request with a branch name, which can contain the attack payload. This can be used to execute code on the GitHub runners and to exfiltrate any secrets one uses in the CI pipeline. A patched action is available in version 4.4.1. No workaround is available.

Database specific 
{
    "cwe_ids": [
        "CWE-77"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27581.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/rlespinasse/github-slug-action

Affected ranges

Type
GIT
Repo
https://github.com/rlespinasse/github-slug-action
Events
Introduced
bd31a9f564f7930eea1ecfc8d0e6aebc4bc3279f
Fixed
102b1a064a9b145e56556e22b18b19c624538d94

Affected versions

4.*

4.0.0
4.0.1
4.1.0
4.2.0
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5

v4.*

v4.2.5
v4.3.0
v4.3.1
v4.3.2
v4.4.0