Duplicated chart entries in Helm

Summary

In Helm before versions 2.16.11 and 3.3.2, a Helm repository can contain duplicates of the same chart, with the last one always used. If a repository is compromised, this lowers the level of access that an attacker needs to inject a bad chart into a repository. To perform this attack, an attacker must have write access to the index file (which can occur during a MITM attack on a non-SSL connection). This issue has been patched in Helm 3.3.2 and 2.16.11. A possible workaround is to manually review the index file in the Helm repository cache before installing software.

Timeline

1. Sep 17, 2020, 9:30 PM UTCCVE published
2. Aug 4, 2024, 1:08 PM UTCRecord last updated

Affected versions

• helm helm

  From 2.0.0 · fixed in 2.16.11; From 3.0.0 · fixed in 3.3.2

• helm.sh/helm/v3Go

  From 3.0.0 · fixed in 3.3.2

• helm.sh/helmGo

  fixed in 2.16.11

References 2