CVE-2025-55198 – helm.sh/helm/v3

Package

Manager: go
Name: helm.sh/helm/v3
Vulnerable Version: >=0 <3.18.5

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS: 0.00015 pctl0.02201

Details

Helm May Panic Due To Incorrect YAML Content A Helm contributor discovered an improper validation of type error when parsing Chart.yaml and index.yaml files that can lead to a panic. ### Impact There are two areas of YAML validation that were impacted. First, when a `Chart.yaml` file had a `null` maintainer or the `child` or `parent` of a dependencies `import-values` could be parsed as something other than a string, `helm lint` would panic. Second, when an `index.yaml` had an empty entry in the list of chart versions Helm would panic on interactions with that repository. ### Patches This issue has been resolved in Helm v3.18.5. ### Workarounds Ensure YAML files are formatted as Helm expects prior to processing them with Helm. ### References Helm's security policy is spelled out in detail in our [SECURITY](https://github.com/helm/community/blob/master/SECURITY.md) document. ### Credits Disclosed by Jakub Ciolek at AlphaSense.

Metadata

Created: 2025-08-14T00:05:27Z
Modified: 2025-08-14T17:15:20Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/08/GHSA-f9f8-9pmf-xv68/GHSA-f9f8-9pmf-xv68.json
CWE IDs: ["CWE-908"]
Alternative ID: GHSA-f9f8-9pmf-xv68
Finding: F138
Auto approve: 1