Summary
A Helm contributor discovered a path traversal vulnerability when Helm saves a chart including at download time.
Workarounds
Check all charts used by Helm for path changes in their name as found in the Chart.yaml file. This includes dependencies.
Credits
Disclosed by Dominykas Blyžė at Nearform Ltd.
Impact
When either the Helm client or SDK is used to save a chart whose name within the Chart.yaml file includes a relative path change, the chart would be saved outside its expected directory based on the changes in the relative path. The validation and linting did not detect the path changes in the name.
Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files. Typical impact: unauthorized file read or write outside the intended directory.
CVE-2024-25620 has a CVSS score of 6.4 (Medium). The vector is network-reachable, low privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (3.14.1); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
Remediation advice
This issue has been resolved in Helm v3.14.1.
Frequently Asked Questions
- What is CVE-2024-25620? CVE-2024-25620 is a medium-severity path traversal vulnerability in helm.sh/helm/v3 (go), affecting versions <= 3.14.0. It is fixed in 3.14.1. Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files.
- How severe is CVE-2024-25620? CVE-2024-25620 has a CVSS score of 6.4 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which versions of helm.sh/helm/v3 are affected by CVE-2024-25620? helm.sh/helm/v3 (go) versions <= 3.14.0 is affected.
- Is there a fix for CVE-2024-25620? Yes. CVE-2024-25620 is fixed in 3.14.1. Upgrade to this version or later.
- Is CVE-2024-25620 exploitable, and should I be worried? Whether CVE-2024-25620 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2024-25620 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2024-25620? Upgrade
helm.sh/helm/v3to 3.14.1 or later.