CVE-2023-25165
MEDIUM4.3EPSS 0.19%Information disclosure in helm.sh/helm/v3
Published: 2/8/2023Modified: 2/4/2026
Description
An information disclosure vulnerability exists in the getHostByName template function. The function 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.
Affected packages (3)
- Bitnami/helm>= 3.0.0, < 3.11.1
- Go/helm.sh/helm/v3>= 3.0.0, < 3.11.1
- Go/helm.sh/helm/v3from 0, < 3.11.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
References (6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2023-25165
- PATCHhttps://github.com/helm/helm
- WEBhttps://github.com/helm/helm/commit/293b50c65d4d56187cd4e2f390f0ada46b4c4737
- WEBhttps://github.com/helm/helm/commit/5abcf74227bfe8e5a3dbf105fe62e7b12deb58d2
- WEBhttps://github.com/helm/helm/security/advisories/GHSA-pwcw-6f5g-gxf8
- WEBhttps://pkg.go.dev/vuln/GO-2023-1547