Path Traversal in Helm
CVE-2026-35206
Helm is a package manager for Charts for Kubernetes. In Helm versions <=3.20.1 and <=4.1.3, a specially crafted Chart will cause helm pull --untar [chart URL | repo/chartname] to write the Chart's contents to the immediate output directory (as defaulted to the current working directory; or as given by the --destination and --untardir flags), rather than the expected output directory suffixed by the chart's name. This vulnerability is fixed in 3.20.2 and 4.1.4.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.002 (8.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 8.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: -0.000
Affected products
- Helm — versions >= 4.0.0, < 4.1.4, < 3.20.2
Weakness classification (CWE)
References
- github.com/helm/helm/security/advisories/GHSA-hr2v-4r36-88hr (Mitigation, Vendor Advisory)
- github.com/helm/helm/commit/4e7994d4467182f535b6797c94b5b0e994a91436 (Patch)
- github.com/helm/helm/releases/tag/v4.1.4 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-35206?
- CVE-2026-35206 is a medium-severity vulnerability in Helm, classified under Path Traversal. CVSS score: 4.4/10. Published 2026-04-09.
- How severe is CVE-2026-35206?
- Medium severity. CVSS v3 base score is 4.4 out of 10.