Helm is a package manager for Charts for Kubernetes. From 4.0.0 to 4.1.3, Helm will install plugins missing provenance (.prov file) when signature verification is required. This vulnerability is fixed in 4.1.4.
https://helm.sh/docs/topics/provenance/#the-provenance-file
https://github.com/helm/helm/security/advisories/GHSA-q5jf-9vfq-h4h7
https://github.com/helm/helm/releases/tag/v4.1.4
https://github.com/helm/helm/commit/05fa37973dc9e42b76e1d2883494c87174b6074f
Published: 2026-04-09
Updated: 2026-04-13
Base Score: 6.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P
Severity: Medium
Base Score: 9.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Severity: Critical
Base Score: 8.4
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Severity: High
EPSS: 0.00014