How severe is CVE-2025-53547?

CVE-2025-53547 has a CVSS 3.x base score of 8.5, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity high, and availability high.

Is CVE-2025-53547 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-53547?

CVE-2025-53547 affects Helm. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-53547?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-53547 have an EU (EUVD) identifier?

Yes. CVE-2025-53547 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20751.

When was CVE-2025-53547 published?

CVE-2025-53547 was published on 2025-07-08 and last updated on 2026-06-17.

CVE-2025-53547

CVE-2025-53547 is a high-severity vulnerability in Helm with a CVSS 3.x base score of 8.5. 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-94.

Key facts

Severity: High (CVSS 3.x base score 8.5)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-20751
Weakness: CWE-94
Affected product: Helm
Published: 2025-07-08
Last modified: 2026-06-17

Description

Helm is a package manager for Charts for Kubernetes. Prior to 3.18.4, a specially crafted Chart.yaml file along with a specially linked Chart.lock file can lead to local code execution when dependencies are updated. Fields in a Chart.yaml file, that are carried over to a Chart.lock file when dependencies are updated and this file is written, can be crafted in a way that can cause execution if that same content were in a file that is executed (e.g., a bash.rc file or shell script). If the Chart.lock file is symlinked to one of these files updating dependencies will write the lock file content to the symlinked file. This can lead to unwanted execution. Helm warns of the symlinked file but did not stop execution due to symlinking. This issue has been resolved in Helm v3.18.4.

Frequently asked questions

What is CVE-2025-53547?: Helm is a package manager for Charts for Kubernetes. Prior to 3.18.4, a specially crafted Chart.yaml file along with a specially linked Chart.lock file can lead to local code execution when dependencies are updated. Fields in a Chart.yaml file, that are carried over to a Chart.lock file when dependencies are updated and this file is written, can be crafted in a way that can cause execution if that same content were in a file that is executed (e.g., a bash.rc file or shell script). If the Chart.lock file is symlinked to one of these files updating dependencies will write the lock file content to the symlinked file. This can lead to unwanted execution. Helm warns of the symlinked file but did not stop execution due to symlinking. This issue has been resolved in Helm v3.18.4.
How severe is CVE-2025-53547?: CVE-2025-53547 has a CVSS 3.x base score of 8.5, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity high, and availability high.
Is CVE-2025-53547 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-53547?: CVE-2025-53547 affects Helm. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-53547?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-53547 have an EU (EUVD) identifier?: Yes. CVE-2025-53547 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20751.
When was CVE-2025-53547 published?: CVE-2025-53547 was published on 2025-07-08 and last updated on 2026-06-17.

References

Affected products (1)

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

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