In Helm 2.x before 2.15.2, commands that deal with loading a chart as a directory or packaging a chart provide an opportunity for a maliciously designed chart to include sensitive content such as /etc/passwd, or to execute a denial of service (DoS) via a special file such as /dev/urandom, via symlinks. No version of Tiller is known to be impacted. This is a client-only issue.
CVE-2019-18658
This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.6%, top 31% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 9.8(medium)
- EPSS
- 75.1%
- KEV
- Not listed
Published
November 12, 2019
Last Modified
November 21, 2024
References (2)
- cve@mitrehttps://helm.sh/blog/2019-10-30-helm-symlink-security-notice/
- af854a3a-2127-422b-91ae-364da2661108https://helm.sh/blog/2019-10-30-helm-symlink-security-notice/
Affected Packages
(1 across 1 ecosystem)
Go(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| helm.sh/helm | — | 2.15.2+incompatible | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 40× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:24 UTCEPSS rescore
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- 2026-06-14 15:13 UTCOSV refresh
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- 2026-05-27 11:58 UTCEG score recompute
- 2026-05-26 13:42 UTCEPSS rescore
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- 2026-05-26 07:17 UTCEPSS rescore
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2019-18658?
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What is the CVSS score of CVE-2019-18658?
How do I remediate CVE-2019-18658?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2019-18658
Is Your Infrastructure Affected by CVE-2019-18658?
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