Vulnerability Description
The GitHub Actions ToolKit provides a set of packages to make creating actions easier. The `core.exportVariable` function uses a well known delimiter that attackers can use to break out of that specific variable and assign values to other arbitrary variables. Workflows that write untrusted values to the `GITHUB_ENV` file may cause the path or other environment variables to be modified without the intention of the workflow or action author. Users should upgrade to `@actions/core v1.9.1`. If you are unable to upgrade the `@actions/core` package, you can modify your action to ensure that any user input does not contain the delimiter `_GitHubActionsFileCommandDelimeter_` before calling `core.exportVariable`.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Github | Toolkit | < 1.9.1 |
Related Weaknesses (CWE)
References
- https://github.com/actions/toolkit/commit/4beda9cbc00ba6eefe387a937c21087ccb8ee9PatchThird Party Advisory
- https://github.com/actions/toolkit/security/advisories/GHSA-7r3h-m5j6-3q42Third Party Advisory
- https://github.com/actions/toolkit/commit/4beda9cbc00ba6eefe387a937c21087ccb8ee9PatchThird Party Advisory
- https://github.com/actions/toolkit/security/advisories/GHSA-7r3h-m5j6-3q42Third Party Advisory
FAQ
What is CVE-2022-35954?
CVE-2022-35954 is a vulnerability with a CVSS score of 5.0 (MEDIUM). The GitHub Actions ToolKit provides a set of packages to make creating actions easier. The `core.exportVariable` function uses a well known delimiter that attackers can use to break out of that specif...
How severe is CVE-2022-35954?
CVE-2022-35954 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-35954?
Check the references section above for vendor advisories and patch information. Affected products include: Github Toolkit.