CVE-2023-27581
8.8 · HIGHOverview
CVE-2023-27581 is a high-severity vulnerability affecting github-slug-action_project github-slug-action. It was published on March 13, 2023 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from github-slug-action_project. Update github-slug-action to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| github-slug-action_project | github-slug-action | >= 4.0.0, < 4.4.1 | Affected |
References
Frequently Asked Questions
What is CVE-2023-27581?
CVE-2023-27581 is a high-severity vulnerability affecting github-slug-action_project github-slug-action. It was published on March 13, 2023 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2023-27581?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2023-27581?
Check the references section for vendor advisories and patches from github-slug-action_project. Update github-slug-action to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2023-27581?
CyberStrike's AI-powered security agents can automatically detect CVE-2023-27581 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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Browser-based exploitation validates findings with real proof-of-concept.
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