CVE-2026-35205
Helm's plugin verification fails open when .prov is missing, allowing unsigned plugin install
- State
- Published
- Severity
- 8.4 High
- Published
- Apr 9, 2026
- Updated
- Jul 15, 2026
- Reserved
- Apr 1, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.4 High | 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 | GitHub_M |
| 3.1 | 8.0 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H | redhat-SADP |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
helmhelm |
|
References
- https://github.com/helm/helm/security/advisories/GHSA-q5jf-9vfq-h4h7
- https://github.com/helm/helm/commit/05fa37973dc9e42b76e1d2883494c87174b6074f
- https://github.com/helm/helm/releases/tag/v4.1.4
- https://helm.sh/docs/topics/provenance/#the-provenance-file
- https://access.redhat.com/security/cve/CVE-2026-35205vdb-entry
- RHBZ#2456927issue-tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35205.json
- https://access.redhat.com/errata/RHSA-2026:26441vendor-advisory
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