Improper input validation in Helm
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.010 (58.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 3.4 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:L/A:N.
Affected products
- Helm — versions >= 2.0.0, < 2.16.11, >= 3.0.0, < 3.3.2
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-15186?
- CVE-2020-15186 is a low-severity vulnerability in Helm, classified under Improper Input Validation. CVSS score: 3.4/10. Published 2020-09-17.
- How severe is CVE-2020-15186?
- Low severity. CVSS v3 base score is 3.4 out of 10.