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localstack-core@0.2.1.dev7796

The core library and runtime of LocalStack

  • latest version

    2026.3.1.dev26

  • latest non vulnerable version

    2026.3.1.dev26

  • first published

    3 years ago

  • latest version published

    7 months ago

  • licenses detected

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    Direct Vulnerabilities

    Known vulnerabilities in the localstack-core package. This does not include vulnerabilities belonging to this package’s dependencies.

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    VulnerabilityVulnerable Version
    • M
    Cross-site Scripting (XSS)

    localstack-core is a The core library and runtime of LocalStack

    Affected versions of this package are vulnerable to Cross-site Scripting (XSS) via the CloudFormation deploy UI (deploy_ui.py and deploy.html), which renders server-side template placeholders (such as templateBody, stackName, and errorMessage) directly into an HTML page without sanitization or escaping. An attacker who can influence the CloudFormation template body, stack name, or error message content can inject arbitrary JavaScript that executes in the victim's browser when the deploy UI page is rendered.

    How to fix Cross-site Scripting (XSS)?

    Upgrade localstack-core to version 4.10.0 or higher.

    [,4.10.0)
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