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bdu:2026-07346

BIT-helm-2026-35204 — Helm has a path traversal in plugin metadata version enables arbitrary file write outside Helm plugin directory

Affected: Bitnami: helm

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.

CLEANSTART-2026-SY10925 — Security fix for CVE-2026-35204 applied in: kumactl 2.13.4-r0

Affected: CleanStart: kumactl

Security vulnerability affects the kumactl package. This issue is resolved in later releases. See references for vulnerability details.

EUVD-2026-337294

fkie_cve-2026-35204

GHSA-vmx8-mqv2-9gmg — Helm has a path traversal in plugin metadata version enables arbitrary file write outside Helm plugin directory

Affected: Go: helm.sh/helm/v4

Helm is a package manager for Charts for Kubernetes. In Helm versions >=4.0.0 and <=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.

### Impact

A Helm user who installs or updates a plugin that is specially crafted can cause Helm to attempt to write the content of the affected plugin to an arbitrary location on the user's filesystem. Impacted users risk potentially overwriting user and system files which may further compromise the integrity of a system.

### Patches

This issue has been patched in Helm v4.1.4

Installing/updating a plugin with a non-SemVer version (which excludes path traversal patterns) will result in an error.

### Workarounds

Validate that the `plugin.yaml` of the Helm plugin does not include a `version:` field containing POSIX dot-dot path separators ie. "`/../`".

openSUSE-SU-2026:10526-1 — helm-4.1.4-1.1 on GA media

helm-4.1.4-1.1 on GA media

RHSA-2026:26441 — Red Hat Security Advisory: Helm CLI v4.1.4 release

github.com/helm/helm: helm.sh/helm/v4: Helm: Arbitrary file write via specially crafted plugin github.com/helm/helm: helm.sh/helm/v4: Helm: Arbitrary code execution due to insufficient plugin provenance verification github.com/helm/helm: Helm: Files written to unexpected directory via specially crafted Chart

WID-SEC-W-2026-1048 — helm: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in helm ausnutzen, um Dateien zu manipulieren, um Sicherheitsvorkehrungen zu umgehen, und potenziell um beliebigen Code auszuführen.