TI-2026-27357 Aliases CVE-2026-35204 GHSA-vmx8-mqv2-9gmg

Helm has a path traversal in plugin metadata version enables arbitrary file write outside Helm plugin directory

LOW 36CWE-22Published 2026-04-09 · Updated 2026-07-15

Key facts

Attack vector: Local
Privileges required: None
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: None · High · Low
Fix status: Partial Red Hat: 1 fixed, 1 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00205 10th percentileScored 2026-11-07

Fix Partial helm (helm): 4.1.4helm.sh/helm/v4 (Go): 4.1.4Red Hat: 1 advisoryRed Hat: 1 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
helm	helm	4.0.0 to before 4.1.4	4.1.4	Patch available	CNA
—	helm.sh/helm/v4 (Go)	4.0.0 to before 4.1.4	4.1.4	Patch available	GHSA-vmx8-mqv2-9gmg

helm Vendorhelm Affected 4.0.0 to before 4.1.4 Fixed in 4.1.4 Patch available CNA
helm.sh/helm/v4 (Go) Vendor— Affected 4.0.0 to before 4.1.4 Fixed in 4.1.4 Patch available GHSA-vmx8-mqv2-9gmg

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:helm:helm::::::::	4.0.0 to before 4.1.4	Vulnerable	helm

cpe:2.3:a:helm:helm:*:*:*:*:*:*:*:* Versions 4.0.0 to before 4.1.4 Vulnerable ·helm

Remediation

Fix · CNA helm (helm) Fixed in 4.1.4
Fix · GHSA-vmx8-mqv2-9gmg helm.sh/helm/v4 (Go) Fixed in 4.1.4 Advisory →

Red Hat 1 advisory

RHSA-2026:26441 Released 2026-06-16 · Red Hat rating Important
Helm CLI v4.1.4 release
- Helm CLI 4.1 helm-cli-4.1.4@amd64, helm-cli-4.1.4@amd64_darwin, helm-cli-4.1.4@amd64_windows +5

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat OpenShift AI (RHOAI)	Affected	No fix yet
Helm CLI 4.1	Fixed	RHSA-2026:26441

Timeline

2026-10-02 Threatist record created from CVE-2026-35204
2026-10-03 Alias added: GHSA-vmx8-mqv2-9gmg
2026-11-06 Affected versions changed · Red Hat

References

Patch 1

https://github.com/helm/helm/commit/36c8539e99bc42d7aef9b87d136254662d04f027

Advisory 2

Other 2

TI-2024-16848 Dependency management path traversal in helm CVSS 3.1MEDIUM 6.4
TI-2026-45154 Helm Files.Lines Denial of Service via Empty Chart Files CVSS 4.0MEDIUM 5.3
TI-2023-10627 getHostByName Function Information Disclosure CVSS 3.1MEDIUM 4.3
TI-2019-15264 An issue was discovered in Cloud Native Computing Foundation (CNCF) Helm through 3.13.3. CVSS 3.1CRITICAL 9.1
TI-2019-13497 In Helm 2.x before 2.15.2, commands that deal with loading a chart as a directory or… CVSS 3.1CRITICAL 9.8
TI-2019-16052 Improper certificate validation in helm CVSS 3.0CRITICAL 9.8

See all 28 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences