CVE intelligence and bounded remediation
CVE-2019-1000009 — Helm Chartmuseum security vulnerability
Helm ChartMuseum version >=0.1.0 and < 0.8.1 contains a CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in HTTP API to save charts that can result in a specially crafted chart could be uploaded and saved outside the intended location. This attack appears to be exploitable via A POST request to the HTTP API can save a chart archive outside of the intended directory. If authentication is, optionally, enabled this requires an authorized user to do so. This vulnerability appears to have been fixed in 0.8.1.
- Severity
- Medium
- CVSS
- 6.5 (3.0)
- Published
- 2019-02-04
- CISA KEV
- Not currently listed
- Ecosystem
- software/application
- Weaknesses
- CWE-22
Affected products
- helm / chartmuseum
Matched remediation archetype
Path traversal, unsafe upload, and file handling
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
Check exposure
- Trace untrusted filenames, archive entries, URLs, and path segments into read, write, include, extraction, and upload operations.
- Identify filesystem roots, mount permissions, symbolic-link behavior, archive handling, and whether uploaded content is web-accessible or executable.
- Review canonicalization and containment checks across supported operating systems and storage backends.
Remediate safely
- Generate server-side storage identifiers and resolve paths beneath a fixed root using filesystem-aware containment checks.
- Reject absolute, parent-relative, alternate-separator, device, link, and archive entries that escape the intended root.
- Store uploads outside executable or served paths, validate type and size, and use private atomic temporary files.
Authoritative sources
Complete CVE record and remediation plan
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