CVE-2025-32387

MEDIUM

Helm < 3.17.3 - Stack-based Buffer Overflow via Deeply Nested JSON Schema References

Title source: llm
STIX 2.1

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.

References (2)

Core 2

Scores

CVSS v3 6.5
EPSS 0.0038
EPSS Percentile 29.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-121 CWE-674
Status published
Products (2)
helm/helm < 3.17.3
helm/v3 0 - 3.17.3Go
Published Apr 09, 2025
Tracked Since Feb 18, 2026