CVE-2020-15186
LOW3.4EPSS 0.23%Improper Sanitizing of plugin names in helm
Published: 5/24/2021Modified: 3/13/2026
Description
### Impact Security researchers at Trail of Bits discovered that 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`. ### Specific Go Packages Affected helm.sh/helm/v3/pkg/plugin ### Patches This issue has been patched in Helm 3.3.2. ### Workarounds Do 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 packages (3)
- Bitnami/helm>= 2.0.0, < 2.16.11, >= 3.0.0, < 3.3.2
- Go/helm.sh/helmfrom 0, < 2.16.11
- Go/helm.sh/helm/v3>= 3.0.0, < 3.3.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:L/A:N |
References (5)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2020-15186
- PATCHhttps://github.com/helm/helm
- WEBhttps://github.com/helm/helm/commit/809e2d999e2c33e20e77f6bff30652d79c287542
- WEBhttps://github.com/helm/helm/commit/c8d6b01d72c9604e43ee70d0d78fadd54c2d8499
- WEBhttps://github.com/helm/helm/security/advisories/GHSA-m54r-vrmv-hw33