🛡️ CVE-2023-27581
🟠 CVSS 8.8 — High ⚠️ Exploit Public CWE-77 NVD
8.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

github-slug-action is a GitHub Action to expose slug value of GitHub environment variables inside of one's GitHub workflow. Starting in version 4.0.0` and prior to version 4.4.1, this action uses the `github.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.

Details

Severity HIGH
CVSS Score 8.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-77
Public Exploit ⚠️ Yes
Source NVD
Published 2023-03-13
Updated 2026-06-08
Modified 2024-11-21

Affected Packages

Software From version Fixed in
github-slug-action 4.0.0 4.4.1
rlespinasse/github-slug-action 4.0.0 4.4.1

References

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