GHSA-q5jf-9vfq-h4h7Published

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

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cve-program · CVE-2026-35205

Published

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.

Source published: 9 Apr 2026 15:06:41 UTC
Source modified: 15 Jul 2026 01:02:59 UTC
Saved here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 4.0 · 8.4 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

euvd · EUVD-2026-20901

Published

Additional publisher context

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Apr 9, 2026, 3:06:41 PM

dateUpdated: Jul 15, 2026, 1:02:59 AM

7 related source bulletins · separate from aliases

openSUSE-SU-2026:10538-1: helm-4.1.4-2.1 on GA media

CVE-2026-35205 · CVE-2026-35206

openSUSE-SU-2026:21983-1: Security update for helm

CVE-2026-33814 · CVE-2026-35204 · CVE-2026-35205 · CVE-2026-35206 · CVE-2026-41178 · CVE-2026-41888 · CVE-2026-48978 · CVE-2026-50151 · CVE-2026-50163 · CVE-2026-56852 · CVE-2026-56854 · CVE-2026-56855 · CVE-2026-56864 · CVE-2026-56865 · CVE-2026-78662 · CVE-2026-81871 · CVE-2026-81872 · CVE-2026-85732

WID-SEC-W-2026-1048: helm: Mehrere Schwachstellen

CVE-2026-35204 · CVE-2026-35205 · CVE-2026-35206

RHSA-2026:26441: Red Hat Security Advisory: Helm CLI v4.1.4 release

CVE-2026-35204 · CVE-2026-35205 · CVE-2026-35206

SUSE-SU-2026:23984-1: Security update for helm

SUSE-SU-2026:24282-1: Security update for helm

CVE-2026-33814 · CVE-2026-35204 · CVE-2026-35205 · CVE-2026-35206 · CVE-2026-41178 · CVE-2026-41888 · CVE-2026-48978 · CVE-2026-50151 · CVE-2026-50163 · CVE-2026-56852 · CVE-2026-56854 · CVE-2026-56855 · CVE-2026-56864 · CVE-2026-56865 · CVE-2026-63209 · CVE-2026-78662 · CVE-2026-81870 · CVE-2026-81871 · CVE-2026-81872 · CVE-2026-85732

SUSE-SU-2026:23973-1: Security update for helm

Source published: Apr 9, 2026, 3:06:41 PM (timezone not stated)
Source modified: Jul 15, 2026, 1:02:59 AM (timezone not stated)
Saved here: 15 Nov 2026 10:09:24 UTC
Source terms: ENISA EUVD · source terms and attribution apply

Original source record · Cite this exact observation · Complete original publisher JSON

Source: euvd · ENISA EUVD · source terms and attribution apply. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

EUVD CVSS 4.0 · 8.4 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

nvd · CVE-2026-35205

Published

Additional publisher context

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Modified

Weakness classifications: CWE-636 · CWE-347

Original publisher date fields

published: 2026-04-09T16:16:27.720

lastModified: 2026-07-15T02:20:41.583

1 source CPE criteria · context only

cpe:2.3:a:helm:helm:*:*:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published: 9 Apr 2026 16:16:27 UTC
Source modified: 15 Jul 2026 02:20:41 UTC
Saved here: 25 Oct 2026 08:17:35 UTC
Source terms: NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

Source: nvd · NIST NVD usage terms; underlying source attribution retained. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 4.0 · [email protected] · Secondary · 8.4 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS 3.1 · [email protected] · Primary · 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS 3.1 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c · Secondary · 8.0 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

osv · GHSA-q5jf-9vfq-h4h7

Published

Helm is a package manager for Charts for Kubernetes. In Helm versions >=4.0.0 and <=4.1.3, Helm will install plugins missing provenance (`.prov` file) when signature verification is required. ### Impact The bug allows plugin authors to omit provenance (signing) data from plugins, bypassing plugin signature verification upon plugin install/update. Notably, plugin hooks will be executed as designed on the installed plugin, enabling a malicious plugin to execute arbitrary code. ### Patches This issue has been patched in Helm v4.1.4 Installing/updating a plugin with missing provenance will error if signature verification is required. ### Workarounds Users may manually validate that a plugin archive is not missing provenance data (`.prov` file) before installation.

Source published: 10 Apr 2026 15:33:03 UTC
Source modified: 10 Sep 2026 03:51:02 UTC
Saved here: 24 Oct 2026 13:19:41 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

Source: osv · GitHub Advisory Database · CC-BY-4.0. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS_V3 · CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS_V4 · 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

Publisher rating · HIGH

osv · GO-2026-5566

Published

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

Source published: 24 Jul 2026 18:35:55 UTC
Source modified: 24 Jul 2026 19:11:39 UTC
Saved here: 24 Oct 2026 13:19:41 UTC
Source terms: OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

Source: osv · OSV · upstream source license applies. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.