GHSA-5xqw-8hwv-wg92

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

At a glance

Published
Updated
CVE
CVE-2025-32387
Aliases
BIT-helm-2025-32387, GO-2025-3602
CVSS_V3
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Description

A Helm contributor discovered that a specially crafted JSON Schema within a chart can lead to a stack overflow. ### Impact 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. ### Patches This issue has been resolved in Helm v3.17.3. ### Workarounds Ensure that the JSON Schema within any charts loaded by Helm does not have a large number of nested references. These JSON Schema files are larger than 10 MiB. ### For more information Helm's security policy is spelled out in detail in our [SECURITY](https://github.com/helm/community/blob/master/SECURITY.md) document. ### Credits Disclosed by Jakub Ciolek at AlphaSense.

Affected packages

PackageVersions
Go · helm.sh/helm/v3introduced 0, fixed 3.17.3

References

Sources

SourceLicence
OSV.devCC-BY 4.0 — GitHub Advisory Database