BIT-helm-2025-53547

    Dashboard / Vulnerabilities / BIT-helm-2025-53547

    BIT-helm-2025-53547

    Published: 10 Jul 2025Last Modified: 8 Sept 2026

    Summary: Helm Chart Dependency Updating With Malicious Chart.yaml Content And Symlink Can Lead To Code Execution

    Details: 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.

    References: https://github.com/helm/helm/commit/4b8e61093d8f579f1165cdc6bd4b43fa5455f571, https://github.com/helm/helm/security/advisories/GHSA-557j-xg8c-q2mm, https://news.ycombinator.com/item?id=44506696, https://nvd.nist.gov/vuln/detail/CVE-2025-53547

    Affected packages

    Package

    Name: helm

    Purl: pkg:bitnami/helm

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -3.18.4

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    BIT-helm-2025-53547 | CVE-DB