CVE-2025-55199

Helm Charts with Specific JSON Schema Values Can Cause Memory Exhaustion

Published: Aug 13, 2025Updated: Aug 21, 2025 Sources: CVE List NVD GHSA BDUCWE-770

6.5MEDIUM

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:RUser Interaction

Required

Scope

S:UScope

Unchanged

Impact

C:NConfidentiality

None

I:NIntegrity

None

A:HAvailability

High

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Weaknesses

CWE-770

Affected Products

helm

oss-project

helmMixed

DevTools & CI / artifact-registry

ООО «Ред Софт»

commercial·RUaka red soft

РЕД ОСOn-premOS

Operating Systems / linux-distro

The Linux Foundation

oss-project·USaka linuxfoundation.org, linux foundation

HelmLibraryLibrary

OSS Libraries / generic-library

package-ecosystem

helm.sh/helm/v3

OSS Libraries

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Impact

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References

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

github.com

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

github.com

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

github.com

and 3 more references View all →

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