CVE-2026-35204

High

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.

SeverityHigh

CVSS8.6

Exploit probability—

ProductHelm

PublishedApr 9, 2026

First seenApr 9, 2026

Weakness typeCWE-22Path traversal

How to fix

Update

helm helm4.1.4 or later
helm.sh/helm/v44.1.4 or later

Vendor advisories

access.redhat.com/errata/RHSA-2026:26441

Affected products

Product	Affected versions	Fixed in
helm helm	4.0.0 ≤ v < 4.1.4	4.1.4
helm.sh/helm/v4Go	4.0.0 ≤ v < 4.1.4	4.1.4

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