CVE-2020-15186: Helm

Low severity, CVSS 2.7. EPSS: 1% chance of exploitation in the next 30 days.

In Helm before versions 2.16.11 and 3.3.2 plugin names are not sanitized properly. As a result, a malicious plugin author could use characters in a plugin name that would result in unexpected behavior, such as duplicating the name of another plugin or spoofing the output to `helm --help`. This issue has been patched in Helm 3.3.2. A possible workaround is to not install untrusted Helm plugins. Examine the `name` field in the `plugin.yaml` file for a plugin, looking for characters outside of the [a-zA-Z0-9._-] range.

Affected products

• Helm Helm: from 2.0.0, before 2.16.11 (fixed in 2.16.11); from 3.0.0, before 3.3.2 (fixed in 3.3.2)

Published 2020-09-17. Last modified 2026-06-17.