CVE-2026-35204

Name: CVE-2026-35204
Creator: NVD / NIST
Published: 2026-04-09T16:16:27.55+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.4/10EPSS 0.17%

Last modified Jun 17, 2026

CVE-2026-35204 is a high-severity vulnerability rated 8.4/10 on the CVSS scale. 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. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.6/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CVSS 4.0

8.4/10

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.17%

7.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Helm	Helm	>= 4.0.0, < 4.1.4

References

https://github.com/helm/helm/commit/36c8539e99bc42d7aef9b87d136254662d04f027Patch
https://github.com/helm/helm/releases/tag/v4.1.4Product, Release Notes
https://github.com/helm/helm/security/advisories/GHSA-vmx8-mqv2-9gmgMitigation, Vendor Advisory

Timeline

Published: Apr 9, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-35204?

How severe is CVE-2026-35204?

CVE-2026-35204 has a CVSS score of 8.4/10 (HIGH severity). The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.

How do I fix CVE-2026-35204?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-35204?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST