8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
0.001 Low
EPSS
Percentile
45.3%
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 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.
[
{
"vendor": "rlespinasse",
"product": "github-slug-action",
"versions": [
{
"version": ">= 4.0.0, < 4.4.1",
"status": "affected"
}
]
}
]