High 8.4Published Apr 9, 2026

CVE-2026-35205Helm's plugin verification fails open when .prov is missing, allowing unsigned plugin install

Updated under an hour ago (Oct 26, 2026, 10:40 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for helm

Exploited in the last 30 days

Helm is a package manager for Charts for Kubernetes. From 4.0.0 to 4.1.3, Helm will install plugins missing provenance (.prov file) when signature verification is required. This vulnerability is fixed in 4.1.4.

CVSS: 8.4 HIGH (v4.0, CNA)CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-636, CWE-347
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Modified
Record last updated: Jul 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

helm helm helm:helm (from the name)	from 4.0.0, < 4.1.4	CNA record
Red Hat Helm CLI 4.1 redhat:helm_cli	from cli-4.1.4 not affected	CISA ADP
helm helm helm:helm	from 4.0.0 before 4.1.4	NVD

References

https://github.com/helm/helm/security/advisories/GHSA-q5jf-9vfq-h4h7x-refsource-confirm, mitigation, vendor-advisory
https://github.com/helm/helm/commit/05fa37973dc9e42b76e1d2883494c87174b6074fx-refsource-misc, patch
https://github.com/helm/helm/releases/tag/v4.1.4x-refsource-misc, product, release-notes
https://helm.sh/docs/topics/provenance/#the-provenance-filex-refsource-misc, product
https://access.redhat.com/errata/RHSA-2026:26441
https://access.redhat.com/security/cve/CVE-2026-35205
https://bugzilla.redhat.com/show_bug.cgi?id=2456927
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35205.json

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.