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CVE-2026-35205 affects Helm, the Kubernetes package manager for Charts. In Helm versions 4.0.0 through 4.1.3, plugin installation logic will install plugins even when the expected provenance (.prov) file is missing, despite signature verification being required. This results in a failure to properly enforce provenance verification during plugin installation, allowing installation to proceed without the required signed provenance artifact. The issue undermines the trust model for verified plugin installation. The vulnerability is fixed in Helm 4.1.4.
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Insufficient verification of Helm plugin provenance can permit arbitrary code execution. This vulnerability is the source of the reference's CVSS v2 base score of 7.2.
A vulnerability in Helm where versions 4.0.0 through 4.1.3 may install plugins missing a provenance (.prov) file even when signature verification is required.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.