Description
Helm is a tool that streamlines installing and managing Kubernetes applications.`getHostByName` is a Helm template function introduced in Helm v3. The function is able to accept a hostname and return an IP address for that hostname. To get the IP address the function performs a DNS lookup. The DNS lookup happens when used with `helm install|upgrade|template` or when the Helm SDK is used to render a chart. Information passed into the chart can be disclosed to the DNS servers used to lookup the IP address. For example, a malicious chart could inject `getHostByName` into a chart in order to disclose values to a malicious DNS server. The issue has been fixed in Helm 3.11.1. Prior to using a chart with Helm verify the `getHostByName` function is not being used in a template to disclose any information you do not want passed to DNS servers.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| helm | helm | >= 3.0.0, < 3.11.1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | helm | 3.11.1-150000.1.16.1 | SUSE-SU-2023:1571-1 |
| SLES 15 SP4 | terraform-provider-helm | 2.9.0-150200.6.8.1 | SUSE-SU-2023:1752-1 |
| SLES 15 SP3 | terraform-provider-helm | 2.9.0-150200.6.8.1 | SUSE-SU-2023:1752-1 |
| SLES 15 SP2 | terraform-provider-helm | 2.9.0-150200.6.8.1 | SUSE-SU-2023:1752-1 |
| SLES 15 SP1 | terraform-provider-helm | 2.9.0-150100.3.6.3 | SUSE-SU-2023:2100-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 15 SP4 | trivy | 0.37.3-bp154.2.9.1 | openSUSE-SU-2023:0064-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | cilium-cli | 0.12.13-1.1 | openSUSE-SU-2024:12695-1 |
| openSUSE Tumbleweed | helm | 3.11.1-1.1 | openSUSE-SU-2024:12667-1 |
| openSUSE Tumbleweed | helm3 | 3.19.2-1.1 | openSUSE-SU-2025:15779-1 |
| openSUSE Tumbleweed | helmfile | 0.150.0-2.1 | openSUSE-SU-2024:12668-1 |
| openSUSE Tumbleweed | k9s | 0.27.3-1.1 | openSUSE-SU-2024:12682-1 |
| openSUSE Tumbleweed | nova | 3.6.1-1.1 | openSUSE-SU-2024:12676-1 |
| openSUSE Tumbleweed | pluto | 5.13.3-1.1 | openSUSE-SU-2024:12683-1 |
| openSUSE Tumbleweed | terraform-provider-helm | 2.9.0-1.1 | openSUSE-SU-2024:12729-1 |
| openSUSE Tumbleweed | trivy | 0.37.3-1.1 | openSUSE-SU-2024:12692-1 |
| openSUSE Leap 15.4 | helm | 3.11.1-150000.1.16.1 | SUSE-SU-2023:1571-1 |
| openSUSE Leap 15.4 | terraform-provider-helm | 2.9.0-150200.6.8.1 | SUSE-SU-2023:1752-1 |
| openSUSE Leap 15.4 | trivy | 0.37.3-bp154.2.9.1 | openSUSE-SU-2023:0064-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | cert-manager | 1.7.3-8 | — |
| Azure Linux 2 (CBL-Mariner) | helm | 3.10.3-3 | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | helm | 3.11.1-r0 | — |
| Wolfi rolling | helm-3 | 3.19.2-r1 | — |
| Wolfi rolling | helm-4 | 4.0.1-r1 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | helm.sh/helm/v3 | >= 3.0.0, < 3.11.1 | 3.11.1 | GHSA-pwcw-6f5g-gxf8 |
| Go | helm.sh/helm/v3 | < 3.11.1 | 3.11.1 | GO-2023-1547 |
Advisories 14
- openSUSE-SU-2024:12683-1 pluto-5.13.3-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1571-1 Security update for helm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1752-1 Security update for terraform-provider-helm SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12668-1 helmfile-0.150.0-2.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12682-1 k9s-0.27.3-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12692-1 trivy-0.37.3-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12729-1 terraform-provider-helm-2.9.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12667-1 helm-3.11.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2100-1 Security update for terraform-provider-helm SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2025:15779-1 helm3-3.19.2-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2023:0064-1 Security update for trivy SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12676-1 nova-3.6.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2024-0665 Red Hat OpenShift: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 21, 2025
- openSUSE-SU-2024:12695-1 cilium-cli-0.12.13-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025