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.
Advisories
Source ID Title
EUVD EUVD EUVD-2025-24647 Helm Charts with Specific JSON Schema Values Can Cause Memory Exhaustion
Github GHSA Github GHSA GHSA-9h84-qmv7-982p Helm Charts with Specific JSON Schema Values Can Cause Memory Exhaustion
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 21 Aug 2025 21:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:helm:helm:*:*:*:*:*:*:*:*

Thu, 14 Aug 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 14 Aug 2025 13:00:00 +0000

Type Values Removed Values Added
First Time appeared Helm
Helm helm
Vendors & Products Helm
Helm helm

Thu, 14 Aug 2025 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Wed, 13 Aug 2025 23:30:00 +0000

Type Values Removed Values Added
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.
Title Helm Charts with Specific JSON Schema Values Can Cause Memory Exhaustion
Weaknesses CWE-770
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-08-14T14:50:39.218Z

Reserved: 2025-08-08T21:55:07.965Z

Link: CVE-2025-55199

cve-icon Vulnrichment

Updated: 2025-08-14T13:41:15.378Z

cve-icon NVD

Status : Analyzed

Published: 2025-08-14T00:15:27.960

Modified: 2025-08-21T21:25:20.793

Link: CVE-2025-55199

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-08-13T23:23:43Z

Links: CVE-2025-55199 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-08-14T12:50:45Z