5.3
Medium
CVE-2026-63308 Helm through 4.2.3, fixed in commit ba6c9a2, contains a denial of service vulnerability in the Files.Lines template…
Description
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| helm 4.2 | earliest → 4.2.3 | No fix stated |
References
- Researcher Disclosure github.com
- Pull Request github.com
- Patch Commit github.com
- VulnCheck Advisory: Helm Files.Lines Denial of Service via Empty Chart Files www.vulncheck.com
Timeline
- Published
- Last modified
Other CVEs of helm
The 25 CVEs of helm →
CVE-2026-35206
Helm is a package manager for Charts for Kubernetes
4.8
Medium
CVE-2026-35205
Helm is a package manager for Charts for Kubernetes
8.4
High
CVE-2026-35204
Helm is a package manager for Charts for Kubernetes
8.4
High
CVE-2025-55198
Helm is a package manager for Charts for Kubernetes
6.5
Medium