CVE-2020-15187 LOW

CVE-2020-15187: Duplicate plugin entries in Helm

Vendor Helm
Product helm
Weakness CWE-694
Published September 17, 2020
Last update May 29, 2025

CVSS base score

3.0/10
Attack vector Network
Attack complexity High
Privileges required Low
User interaction Required
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N

What the vulnerability does

01Description

In Helm before versions 2.16.11 and 3.3.2, a Helm plugin can contain duplicates of the same entry, with the last one always used. If a plugin is compromised, this lowers the level of access that an attacker needs to modify a plugin's install hooks, causing a local execution attack. To perform this attack, an attacker must have write access to the git repository or plugin archive (.tgz) while being downloaded (which can occur during a MITM attack on a non-SSL connection). This issue has been patched in Helm 2.16.11 and Helm 3.3.2. As a possible workaround make sure to install plugins using a secure connection protocol like SSL.

Key dates

02Disclosure timeline

September 17, 2020 CVE published
May 29, 2025 Record updated