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Fencer Vulns
critical 9.8

CVE-2019-18658 json

Helm Unsafe Link Following

published 2019-11-12 6 y ago modified 2026-06-17 4 mo ago also GHSA-p5pc-m4q7-7qm9 , GO-2023-1938 , EUVD-2022-4688

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits
0
none known

Summary

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.

Patch / fix

  • go helm.sh/helm 2.15.2, 2.15.2+incompatible
  • helm helm 2.15.2
  • helm-mirror SLE Module for Containers 15 SP4, SLE Module for Containers 15 SP3, openSUSE Leap 15.4 +1 more 0.3.1-150000.1.13.1

suse advisories SUSE-SU-2022:1888-1

  • helm-mirror openSUSE Tumbleweed 0.3.1-1.9

opensuse advisories openSUSE-SU-2024:10842-1

Exploit prediction

1.75% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
go helm.sh/helm
>=2.0.0, <2.15.2
>=2.0.0+incompatible, <2.15.2+incompatible
2.15.2
2.15.2+incompatible

Classification

Weakness
  • CWE-59 Improper Link Resolution Before File Access

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.