Description
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
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| helm | helm | >= 2.0.0, < 2.16.11, >= 3.0.0, < 3.3.2 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | kubernetes | 1.17.13-4.21.2 | SUSE-SU-2020:3760-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | helm.sh/helm | < 2.16.11 | 2.16.11 | GHSA-m54r-vrmv-hw33 |
| Go | helm.sh/helm/v3 | >= 3.0.0, < 3.3.2 | 3.3.2 | GHSA-m54r-vrmv-hw33 |
Advisories 1
- SUSE-SU-2020:3760-1 Security changes in Kubernetes, etcd, and helm; Bugfix in cri-o package SUSE / openSUSE Security Updates · Feb 4, 2026