VNX-GH-307: Self-hosted runners available to public repositories
A runner group with self-hosted runners allows public repositories.
Any GitHub user can trigger pull_request workflows in a public repository. If those jobs can land on your self-hosted runners, outsiders run code inside your network.
| Severity | High |
| Confidence | high |
| CWE | CWE-668, CWE-829 |
| Command | vulnetix gha org, vulnetix gha audit |
| Needs | runner groups. Without them the rule is reported as not evaluated, never as passed. |
Remediation
Disable “Allow public repositories” on runner groups that contain self-hosted runners, or make those runners ephemeral and network-isolated.
Run only this rule
vulnetix gha org --rule VNX-GH-307
Scoring
CWSS vector at the rule’s default severity: CWSS:1.0/TI:H/AP:A/AL:A/IC:N/FC:LT/RP:N/RL:A/AV:I/AS:N/IN:A/SC:A/BI:C/DI:H/EX:M/EC:N/P:W. A finding whose severity the repository’s settings moved is scored at its adjusted severity.
All rules: GitHub rules.