CVE-2026-35204
Helm has a path traversal in plugin metadata version enables arbitrary file write outside Helm plugin directory
8.6
HIGH
CVSS 3.1
EPSS 0.02%
Description
Helm is a package manager for Charts for Kubernetes. From 4.0.0 to 4.1.3, a specially crafted Helm plugin, when installed or updated, will cause Helm to write the contents of the plugin to an arbitrary filesystem location. To prevent this, validate that the plugin.yaml of the Helm plugin does not include a version: field containing POSIX dot-dot path separators ie. "/../". This vulnerability is fixed in 4.1.4.
How to fix CVE-2026-35204
To remediate CVE-2026-35204, upgrade the affected package to a fixed version below.
- —upgrade to 4.1.4 or later
- —upgrade to 4.1.4 or later
Is CVE-2026-35204 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- >= 4.0.0, < 4.1.4
- >= 4.0.0, < 4.1.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:L/SC:H/SI:H/SA:H |
| osv | CVSS 3.1 | HIGH8.6 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |