CVE-2025-32387

Helm Allows A Specially Crafted JSON Schema To Cause A Stack Overflow

State: Published
Severity: 6.5 Medium
Published: Apr 9, 2025
Updated: Apr 10, 2025
Reserved: Apr 6, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	GitHub_M

Weaknesses

CWE-121 Stack-based Buffer Overflow
CWE-674 Uncontrolled Recursion

Affected Products

Product	Versions
helmhelm	< 3.17.3Affected

References

https://github.com/helm/helm/security/advisories/GHSA-5xqw-8hwv-wg92
https://github.com/helm/helm/commit/d8ca55fc669645c10c0681d49723f4bb8c0b1ce7

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