A Helm contributor discovered a path traversal vulnerability when Helm saves a chart including at download time.
Impact
When either the Helm client or SDK is used to save a chart whose name within the Chart.yaml file includes a relative path change, the chart would be saved outside its expected directory based on the changes in the relative path. The validation and linting did not detect the path changes in the name.
Patches
This issue has been resolved in Helm v3.14.1.
Workarounds
Check all charts used by Helm for path changes in their name as found in the Chart.yaml file. This includes dependencies.
Credits
Disclosed by Dominykas Blyžė at Nearform Ltd.
A Helm contributor discovered a path traversal vulnerability when Helm saves a chart including at download time.
Impact
When either the Helm client or SDK is used to save a chart whose name within the
Chart.yamlfile includes a relative path change, the chart would be saved outside its expected directory based on the changes in the relative path. The validation and linting did not detect the path changes in the name.Patches
This issue has been resolved in Helm v3.14.1.
Workarounds
Check all charts used by Helm for path changes in their name as found in the
Chart.yamlfile. This includes dependencies.Credits
Disclosed by Dominykas Blyžė at Nearform Ltd.