CVE-2026-35205
From 4.0.0 to 4.1.3, Helm will install plugins missing provenance (.prov file) when signature verification is required.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.22%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public 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.
- CVSS 4.0
- 8.4 HIGHCVSS: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/M
- EPSS
- 0.22% probability · 12th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-636, CWE-347
- Affected
- helm/helm
- Source
- security-advisories@github.com
EPSS 0.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/helm/helm/commit/05fa37973dc9e42b76e1d2883494c87174b6074fPatch
- https://github.com/helm/helm/releases/tag/v4.1.4Product, Release Notes
- https://github.com/helm/helm/security/advisories/GHSA-q5jf-9vfq-h4h7Mitigation, Vendor Advisory
- https://helm.sh/docs/topics/provenance/#the-provenance-fileProduct
- https://access.redhat.com/errata/RHSA-2026:26441
- https://access.redhat.com/security/cve/CVE-2026-35205
- https://bugzilla.redhat.com/show_bug.cgi?id=2456927
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35205.json
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.