CVE-2025-55199

Published: Aug 14, 2025Modified: Jun 17, 2026

6.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploitability: 2.8 / Impact: 3.6

Source: security-advisories@github.com (Secondary)

Description

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 (1)

Products: Helm: Helm

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Helm Helm	Before 3.18.5

Related CWEs

Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.

References (2)

https://github.com/helm/helm/commit/b78692c18f0fb38fe5ba4571a674de067a4c53a5

Source: security-advisories@github.com

Patch

https://github.com/helm/helm/security/advisories/GHSA-9h84-qmv7-982p

Source: security-advisories@github.com

Third Party Advisory

Timeline

No history available yet.