CVE-2026-35205
Helm's plugin verification fails open when .prov is missing, allowing unsigned plugin install
HIGH
7.8
CVSS Score
Published: April 9, 2026 at 03:06 PM UTC
Updated: July 15, 2026 at 02:20 AM UTC
1 product affected across 1 vendorHelm
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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit
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.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (8)
x_refsource_CONFIRMMitigationVendor Advisory
Source: cverecord
https://github.com/helm/helm/security/advisories/GHSA-q5jf-9vfq-h4h7x_refsource_MISCPatch
Source: cverecord
https://github.com/helm/helm/commit/05fa37973dc9e42b76e1d2883494c87174b6074fx_refsource_MISCProductRelease Notes
Source: cverecord
https://github.com/helm/helm/releases/tag/v4.1.4Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://access.redhat.com/errata/RHSA-2026:26441Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://access.redhat.com/security/cve/CVE-2026-35205Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://bugzilla.redhat.com/show_bug.cgi?id=2456927Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35205.jsonSSVC — Action Prioritization
SSVCNo known exploitNot automatableTotal impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-636CWE-347
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