What is CVE-2025-32387?

CVE-2025-32387 is a medium-severity vulnerability in Helm, classified under Stack-based Buffer Overflow. CVSS score: 6.5/10. Published 2025-04-09.

How severe is CVE-2025-32387?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Buffer overflow in Helm

CVE-2025-32387

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…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (1.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Helm — versions < 3.17.3

Weakness classification (CWE)

References

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

Frequently asked questions

What is CVE-2025-32387?: CVE-2025-32387 is a medium-severity vulnerability in Helm, classified under Stack-based Buffer Overflow. CVSS score: 6.5/10. Published 2025-04-09.
How severe is CVE-2025-32387?: Medium severity. CVSS v3 base score is 6.5 out of 10.