Helm is a tool for managing Charts. A chart archive file can be crafted in a manner where it expands to be significantly larger uncompressed than compressed (e.g., >800x difference). When Helm loads this specially crafted chart, memory can be exhausted causing the application to terminate. This issue has been resolved in Helm v3.17.3.
https://github.com/helm/helm/security/advisories/GHSA-4hfp-h4cw-hj8p
https://github.com/helm/helm/commit/d8ca55fc669645c10c0681d49723f4bb8c0b1ce7