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TI-2026-27358 Aliases CVE-2026-35205GHSA-q5jf-9vfq-h4h7

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

Priority LOW 38CWE-636Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 1 fixed, 1 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00221 12th percentileScored 2026-11-07
Fix Partial helm (helm): 4.1.4helm.sh/helm/v4 (Go): 4.1.4Red Hat: 1 advisoryRed Hat: 1 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
helmhelm4.0.0 to before 4.1.44.1.4Patch availableCNA
—helm.sh/helm/v4 (Go)4.0.0 to before 4.1.44.1.4Patch availableGHSA-q5jf-9vfq-h4h7
  • helm Vendorhelm Affected 4.0.0 to before 4.1.4 Fixed in 4.1.4 Patch available CNA
  • helm.sh/helm/v4 (Go) Vendor— Affected 4.0.0 to before 4.1.4 Fixed in 4.1.4 Patch available GHSA-q5jf-9vfq-h4h7

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:helm:helm:*:*:*:*:*:*:*:*4.0.0 to before 4.1.4Vulnerablehelm
  • cpe:2.3:a:helm:helm:*:*:*:*:*:*:*:* Versions 4.0.0 to before 4.1.4 Vulnerable ·helm

Remediation

  • Fix · CNA helm (helm) Fixed in 4.1.4
  • Fix · GHSA-q5jf-9vfq-h4h7 helm.sh/helm/v4 (Go) Fixed in 4.1.4 Advisory →

Red Hat 1 advisory

  • RHSA-2026:26441 Released 2026-06-16 · Red Hat rating Important
    Helm CLI v4.1.4 release
    • Helm CLI 4.1 helm-cli-4.1.4@amd64, helm-cli-4.1.4@amd64_darwin, helm-cli-4.1.4@amd64_windows +5

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat OpenShift AI (RHOAI)AffectedNo fix yet
Helm CLI 4.1Fixed RHSA-2026:26441

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-35205
  2. 2026-10-03 Alias added: GHSA-q5jf-9vfq-h4h7
  3. 2026-11-06 Affected versions changed · Red Hat

References

Patch 1

Advisory 2

Other 3

  • TI-2024-16848 Dependency management path traversal in helm CVSS 3.1MEDIUM 6.4
  • TI-2026-45154 Helm Files.Lines Denial of Service via Empty Chart Files CVSS 4.0MEDIUM 5.3
  • TI-2023-10627 getHostByName Function Information Disclosure CVSS 3.1MEDIUM 4.3
  • TI-2019-15264 An issue was discovered in Cloud Native Computing Foundation (CNCF) Helm through 3.13.3. CVSS 3.1CRITICAL 9.1
  • TI-2019-13497 In Helm 2.x before 2.15.2, commands that deal with loading a chart as a directory or… CVSS 3.1CRITICAL 9.8
  • TI-2019-16052 Improper certificate validation in helm CVSS 3.0CRITICAL 9.8
See all 28 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences