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Fencer Vulns
low 3.7

CVE-2020-4053 json

Path Traversal in Helm Plugin Archive

published 2020-06-16 6 y ago modified 2026-09-08 2 mo ago also BIT-helm-2020-4053 , EUVD-2021-1385 , GHSA-qq3j-xp49-j73f

cvss
3.7
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 73%
public exploits
0
none known

Summary

In Helm greater than or equal to 3.0.0 and less than 3.2.4, a path traversal attack is possible when installing Helm plugins from a tar archive over HTTP. It is possible for a malicious plugin author to inject a relative path into a plugin archive, and copy a file outside of the intended directory. This has been fixed in 3.2.4.

Patch / fix

  • go helm.sh/helm/v3 3.2.4
  • bitnami helm 3.2.4
  • helm helm 3.2.4

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-4053 updated cvss 6.4

helm: allows path traversal when installing plugins from a tar archive over HTTP

  • Red Hat OpenStack Platform 16.2 osp-director-provisioner-container, rhosp-rhel8-tech-preview/osp-director-operator, rhosp-rhel8-tech-preview/osp-director-downloader
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.46% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 3.7 CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
GitHub 3.1 3.7 CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
NVD 3.1 6.8 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 8.5 AV:N/AC:M/Au:S/C:C/I:C/A:C
OSV 3.1 6.8 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
go helm.sh/helm/v3
>=3.0.0, <3.2.4
3.2.4
bitnami helm
>=3.0.0, <3.2.4
3.2.4

Affected products

  • The Helm Project Helm

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

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.