Vulnerability/
REDHAT-BUG-2388449

REDHAT-BUG-2388449

Q: What is the severity of REDHAT-BUG-2388449?

The severity of REDHAT-BUG-2388449 is critical due to its potential to cause an out of memory (OOM) termination.

Q: How do I fix REDHAT-BUG-2388449?

To fix REDHAT-BUG-2388449, upgrade Helm to version 3.18.5 or later.

Q: What versions of Helm are affected by REDHAT-BUG-2388449?

Helm versions prior to 3.18.5 are affected by REDHAT-BUG-2388449.

Q: What security risk does REDHAT-BUG-2388449 pose?

REDHAT-BUG-2388449 poses a risk of denial of service through excessive memory usage.

Q: Is there a workaround for REDHAT-BUG-2388449?

A workaround for REDHAT-BUG-2388449 involves ensuring the JSON Schema files are crafted to prevent excessive memory use.

Published Aug 14, 2025

Updated

Helm is a package manager for Charts for Kubernetes. Prior to version 3.18.5, it is possible to craft a JSON Schema file in a manner which could cause Helm to use all available memory and have an out of memory (OOM) termination. This issue has been resolved in Helm 3.18.5. A workaround involves ensuring all Helm charts that are being loaded into Helm do not have any reference of $ref pointing to /dev/zero.

Affected Software

1 affected component

Helm helm<3.18.5

Event History

Aug 14, 2025

Data Sourced

via Red Hat·12:01 AM

DescriptionSeverityAffected Software

Frequently Asked Questions

What is the severity of REDHAT-BUG-2388449?

The severity of REDHAT-BUG-2388449 is critical due to its potential to cause an out of memory (OOM) termination.

How do I fix REDHAT-BUG-2388449?

To fix REDHAT-BUG-2388449, upgrade Helm to version 3.18.5 or later.

What versions of Helm are affected by REDHAT-BUG-2388449?

Helm versions prior to 3.18.5 are affected by REDHAT-BUG-2388449.

What security risk does REDHAT-BUG-2388449 pose?

REDHAT-BUG-2388449 poses a risk of denial of service through excessive memory usage.

Is there a workaround for REDHAT-BUG-2388449?

A workaround for REDHAT-BUG-2388449 involves ensuring the JSON Schema files are crafted to prevent excessive memory use.

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