CVE-2026-35205

HIGH7.8EPSS 0.02%

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

發布日:2026/4/10修改日:2026/5/5

描述

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.

受影響套件(2)

Bitnami/helm>= 4.0.0, < 4.1.4
Go/helm.sh/helm/v4>= 4.0.0, < 4.1.4

CVSS 分數

來源	版本	嚴重程度	向量
osv	CVSS 4.0	—	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
osv	CVSS 3.1	HIGH7.8	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

描述

受影響套件(2)

CVSS 分數

參考連結(6)