5.3 MEDIUM
- CVSS version (CVSS): 4.0
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Attack Requirement (AT): None (N)
- Privileges Required (PR): None (N)
- User Interaction (UI): Passive (P)
- Vulnerable System Impact Confidentiality (VC): None (N)
- Vulnerable System Impact Integrity (VI): None (N)
- Vulnerable System Impact Availability (VA): Low (L)
- Subsequent System Impact Confidentiality (SC): None (N)
- Subsequent System Impact Integrity (SI): None (N)
- Subsequent System Impact Availability (SA): None (N)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Attack Requirement (MAT): None (N)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): Passive (P)
- Modified Vulnerable System Impact Confidentiality (MVC): None (N)
- Modified Vulnerable System Impact Integrity (MVI): None (N)
- Modified Vulnerable System Impact Availability (MVA): Low (L)
- Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
- Modified Subsequent System Impact Integrity (MSI): Negligible (N)
- Modified Subsequent System Impact Availability (MSA): Negligible (N)
- Safety (S): Not Defined (X)
- Automatable (AU): Not Defined (X)
- Recovery (R): Not Defined (X)
- Value Density (V): Not Defined (X)
- Vulnerability Response Effort (RE): Not Defined (X)
- Provider Urgency (U): Not Defined (X)
- Confidentiality Req. (CR): Not Defined (X)
- Integrity Req. (IR): Not Defined (X)
- Availability Req. (AR): Not Defined (X)
- Exploit Maturity (E): Not Defined (X)
Activity log
- Created suggestion
Helm Files.Lines Denial of Service via Empty Chart Files
Helm through 4.2.3, fixed in commit ba6c9a2, contains a denial of service vulnerability in the Files.Lines template helper in pkg/engine/files.go that allows attackers to trigger an index out of range panic by including zero-length byte slices in chart files. Attackers can include empty files in Helm charts to cause deterministic render failures across template, install, upgrade, lint, and SDK Engine.Render operations.
References
-
-
Pull Request issue-tracking
-
Patch Commit patch
-
https://www.vulncheck.com/advisories/chat2db-insecure-direct-object-reference-v… third-party-advisory
Affected products
- =<4.2.3
- ==ba6c9a29efa7bf9198dad6a5ec12b4fb30c96017
Matching in nixpkgs
pkgs.helm
Free, cross-platform, polyphonic synthesizer
pkgs.helm-ls
Language server for Helm
pkgs.helmify
Creates Helm chart from Kubernetes yaml
pkgs.helmfile
Declarative spec for deploying Helm charts
pkgs.helmsman
Helm Charts (k8s applications) as Code tool
pkgs.helm-docs
Tool for automatically generating markdown documentation for Helm charts
pkgs.helmholtz
Time domain pitch tracker for Pure Data
pkgs.helm-dashboard
Simplified way of working with Helm
pkgs.kubernetes-helm
Package manager for kubernetes
pkgs.helmfile-wrapped
Declarative spec for deploying Helm charts
pkgs.terraform-providers.helm
None
pkgs.kubernetes-helmPlugins.helm-dt
Helm Distribution plugin is is a set of utilities and Helm Plugin for making offline work with Helm Charts easier
pkgs.kubernetes-helmPlugins.helm-s3
Helm plugin that allows to set up a chart repository using AWS S3
pkgs.kubernetes-helmPlugins.helm-git
Helm downloader plugin that provides GIT protocol support
pkgs.kubernetes-helmPlugins.helm-diff
Helm plugin that shows a diff
pkgs.kubernetes-helmPlugins.helm-schema
Helm plugin for generating values.schema.json from multiple values files
pkgs.terraform-providers.hashicorp_helm
None
pkgs.kubernetes-helmPlugins.helm-cm-push
Helm plugin to push chart package to ChartMuseum
pkgs.kubernetes-helmPlugins.helm-secrets
Helm plugin that helps manage secrets
pkgs.kubernetes-helmPlugins.helm-unittest
BDD styled unit test framework for Kubernetes Helm charts as a Helm plugin
pkgs.kubernetes-helmPlugins.helm-mapkubeapis
Helm plugin which maps deprecated or removed Kubernetes APIs in a release to supported APIs
pkgs.vimPlugins.nvim-treesitter-parsers.helm
Tree-sitter grammar for helm
-
nixos-unstable 0.0.0+rev=aa71f63
- nixpkgs-unstable 0.0.0+rev=aa71f63
- nixos-unstable-small 0.0.0+rev=aa71f63
-
nixos-26.05 0.0.0+rev=aa71f63
- nixos-26.05-small 0.0.0+rev=aa71f63
- nixpkgs-26.05-darwin 0.0.0+rev=aa71f63
pkgs.vscode-extensions.tim-koehler.helm-intellisense
Extension to help writing Helm-Templates by providing intellisense
pkgs.tree-sitter-grammars.tree-sitter-go-template-helm
Tree-sitter grammar for go-template-helm
-
nixos-unstable 0-unstable-2026-03-21
- nixpkgs-unstable 0-unstable-2026-03-21
- nixos-unstable-small 0-unstable-2026-03-21
-
nixos-26.05 0-unstable-2026-03-21
- nixos-26.05-small 0-unstable-2026-03-21
- nixpkgs-26.05-darwin 0-unstable-2026-03-21
pkgs.python313Packages.tree-sitter-grammars.tree-sitter-go-template-helm
Python bindings for tree-sitter-go-template-helm
-
nixos-unstable 0+unstable20260321
- nixpkgs-unstable 0+unstable20260321
- nixos-unstable-small 0+unstable20260321
-
nixos-26.05 0+unstable20260321
- nixos-26.05-small 0+unstable20260321
- nixpkgs-26.05-darwin 0+unstable20260321
pkgs.python314Packages.tree-sitter-grammars.tree-sitter-go-template-helm
Python bindings for tree-sitter-go-template-helm
-
nixos-unstable 0+unstable20260321
- nixpkgs-unstable 0+unstable20260321
- nixos-unstable-small 0+unstable20260321
-
nixos-26.05 0+unstable20260321
- nixos-26.05-small 0+unstable20260321
- nixpkgs-26.05-darwin 0+unstable20260321
Package maintainers
-
@magnetophon Bart Brouns <bart@magnetophon.nl>
-
@Bot-wxt1221 Bot-wxt1221 <3264117476@qq.com>
-
@qjoly Quentin JOLY <github@une-pause-cafe.fr>
-
@sagikazarmark Mark Sagi-Kazar <mark.sagikazar@gmail.com>
-
@stehessel Stephan Heßelmann <stephan@stehessel.de>
-
@yurrriq Eric Bailey <eric@ericb.me>
-
@jlesquembre José Luis Lafuente <jl@lafuente.me>
-
@Lynty Lynn Dong <ltdong93+nix@gmail.com>
-
@sarcasticadmin Robert James Hernandez <rob@sarcasticadmin.com>
-
@Chili-Man Diego Rodriguez <dr.elhombrechile@gmail.com>
-
@techknowlogick techknowlogick <techknowlogick@gitea.com>
-
@Frostman Sergei Lukianov <me@slukjanov.name>
-
@saschagrunert Sascha Grunert <mail@saschagrunert.de>
-
@rlupton20 Richard Lupton <richard.lupton@gmail.com>
-
@edude03 Michael Francis <michael@melenion.com>
-
@a1994sc Allen Conlon <software@conlon.dev>
-
@flokli Florian Klink <flokli@flokli.de>
-
@applejag Kalle Fagerberg <applejag.luminance905@passmail.com>
-
@booxter Ihar Hrachyshka <ihar.hrachyshka@gmail.com>
-
@stepbrobd Yifei Sun <ysun@hey.com>
-
@mightyiam Shahar "Dawn" Or <mightyiampresence@gmail.com>
-
@adfaure Adrien Faure <adfaure@pm.me>
-
@A-jay98 Ali Jamadi <ali@jamadi.me>
-
@azahi Azat Bahawi <azat@bahawi.net>