{"id":"CVE-2020-15186","aliases":["GHSA-m54r-vrmv-hw33","BIT-helm-2020-15186"],"title":"Improper Sanitizing of plugin names in helm","summary":"Improper Sanitizing of plugin names in helm","severity":"low","cvss":3.4,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:L/A:N","vendor":"helm","product":"helm.sh/helm/v3","ecosystem":"go","affected":["helm.sh/helm/v3 >= 3.0.0, < 3.3.2","helm.sh/helm < 2.16.11"],"patched":["helm.sh/helm/v3 3.3.2","helm.sh/helm 2.16.11"],"published":"2021-05-24","updated":"2026-07-08","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-m54r-vrmv-hw33","references":[{"url":"https://github.com/helm/helm/security/advisories/GHSA-m54r-vrmv-hw33"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-15186"},{"url":"https://github.com/helm/helm/commit/809e2d999e2c33e20e77f6bff30652d79c287542"},{"url":"https://github.com/helm/helm/commit/c8d6b01d72c9604e43ee70d0d78fadd54c2d8499"},{"url":"https://github.com/helm/helm"}],"tags":["osv","go"],"epss":0.00962,"epssPercentile":0.60169,"ingestedAt":"2026-07-09T18:56:36.608Z","slug":"CVE-2020-15186","body":"## Overview\n\n### Impact\n\nSecurity 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`.\n\n### Specific Go Packages Affected\nhelm.sh/helm/v3/pkg/plugin\n\n### Patches\n\nThis issue has been patched in Helm 3.3.2.\n\n### Workarounds\n\nDo 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.\n\n## Affected packages\n\n- `helm.sh/helm/v3 >= 3.0.0, < 3.3.2`\n- `helm.sh/helm < 2.16.11`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `helm.sh/helm/v3 3.3.2`\n- `helm.sh/helm 2.16.11`","depth":"sunlit","depthScore":19,"depthScoreParts":{"impact":18.7,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}