Medium severity · published Apr 9, 2026
CVE-2026-35206
Helm Chart extraction output directory collapse via `Chart.yaml` name dot-segment
4.4
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 10% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HE
helm · helm
>= 4.0.0, < 4.1.4; < 3.20.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-35206
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-35206
Patch
https://github.com/helm/helm/commit/4e7994d4467182f535b6797c94b5b0e994a91436
Product
https://github.com/helm/helm/releases/tag/v4.1.4
Mitigation
https://github.com/helm/helm/security/advisories/GHSA-hr2v-4r36-88hr
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