CVE-2020-15186

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.

• CWE-20
• CWE-74

• https://github.com/helm/helm/commit/809e2d999e2c33e20e77f6bff30652d79c287542Patch, Third Party Advisory
• https://github.com/helm/helm/security/advisories/GHSA-m54r-vrmv-hw33Third Party Advisory
• https://github.com/helm/helm/commit/809e2d999e2c33e20e77f6bff30652d79c287542Patch, Third Party Advisory
• https://github.com/helm/helm/security/advisories/GHSA-m54r-vrmv-hw33Third Party Advisory

Published

Sep 17, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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