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CVE-2026-35205

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

Published: Apr 9, 2026Updated: Apr 17, 2026 Sources: CVE List NVD BDUCWE-636
NVD MITRE
7.8CVSSHIGH
EPSS Score
0.2%
Top 91.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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 Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-636

Affected Products

РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
HelmThe Linux Foundation
Mixed
Cloud & SaaS / virtualization
helmhelm
Mixed
DevTools & CI / artifact-registry
ооо «ред софт»commercialRUOperating Systemsaka red soft
the linux foundationoss-projectUSCloud & SaaSaka linuxfoundation.org, linux foundation
helmoss-projectDevTools & CI

Exploitability

Official Patch Available

References

https://github.com/helm/helm
github.com
https://github.com/helm/helm/commit/05fa37973dc9e42b76e1d2883494c87174b6074f
github.com
https://github.com/helm/helm/releases/tag/v4.1.4
github.com
and 7 more references View all →

Timeline

Published
Apr 9, 2026
Last Updated
Apr 17, 2026

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