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CVE-2025-32387— Helm Allows A Specially Crafted JSON Schema To Cause A Stack Overflow

Quick assessment

Affected
helm helm
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Helm是CNCF基金会的一款Kubernetes包管理器。 Helm存在安全漏洞，该漏洞源于特制JSON Schema文件可能导致堆栈溢出。

CVSS 6.5 · Medium EPSS 0.49% · P42

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-32387

Vulnerability Information
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Vulnerability Title
Helm Allows A Specially Crafted JSON Schema To Cause A Stack Overflow
Source: CVE Program / CVE List V5
Vulnerability Description
Helm is a package manager for Charts for Kubernetes. A JSON Schema file within a chart can be crafted with a deeply nested chain of references, leading to parser recursion that can exceed the stack size limit and trigger a stack overflow. This issue has been resolved in Helm v3.17.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Helm 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Helm是CNCF基金会的一款Kubernetes包管理器。 Helm存在安全漏洞，该漏洞源于特制JSON Schema文件可能导致堆栈溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
helm helm < 3.17.3 -

II. Public POCs for CVE-2025-32387

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III. Intelligence Information for CVE-2025-32387

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IV. Related Vulnerabilities

Same product: helm
Same vendor: helm
Same weakness: CWE-121