How severe is CVE-2020-4053?

CVE-2020-4053 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2020-4053 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-4053?

CVE-2020-4053 affects Helm. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-4053?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-4053 published?

CVE-2020-4053 was published on 2020-06-16 and last updated on 2026-06-17.

CVE-2020-4053

CVE-2020-4053 is a low-severity vulnerability in Helm with a CVSS 3.x base score of 3.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: Low (CVSS 3.x base score 3.7)
CVSS v2: 8.5
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Helm
Published: 2020-06-16
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2020-4053?: 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.
How severe is CVE-2020-4053?: CVE-2020-4053 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2020-4053 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-4053?: CVE-2020-4053 affects Helm. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-4053?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-4053 published?: CVE-2020-4053 was published on 2020-06-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:helm:helm:*:*:*:*:*:*:*:*

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