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CVE-2025-53547

8.5 · HIGH

Helm is a package manager for Charts for Kubernetes.

Published Jul 8, 2025CWE-94EPSS 0.46%

Overview

CVE-2025-53547 is a high-severity vulnerability. It was published on July 8, 2025 and has a CVSS 3.1 base score of 8.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.5, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/helm/helm/commit/4b8e61093d8f579f1165cdc6bd4b43fa5455f571GitHubgithub.com/helm/helm/security/advisories/GHSA-557j-xg8c-q2mmRefnews.ycombinator.com/item?id=44506696

How CyberStrike helps

Frequently asked questions

What is CVE-2025-53547?

CVE-2025-53547 is a high-severity vulnerability. It was published on July 8, 2025 and has a CVSS 3.1 base score of 8.5 (HIGH).

How severe is CVE-2025-53547?

This vulnerability has a CVSS 3.1 base score of 8.5, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-53547?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-53547?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-53547 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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