Helm Allows A Specially Crafted JSON Schema To Cause A Stack Overflow
cve-program · CVE-2025-32387
PublishedHelm 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.
Read the publisher's advisoryeuvd · EUVD-2025-10671
PublishedHelm 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.
Read the publisher's advisorynvd · CVE-2025-32387
PublishedHelm 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.
Read the publisher's advisoryosv · GHSA-5xqw-8hwv-wg92
PublishedA 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.
Read the publisher's advisoryosv · GO-2025-3602
PublishedHelm Allows A Specially Crafted JSON Schema To Cause A Stack Overflow in helm.sh/helm
Read the publisher's advisoryAffected versions, risk and source history
Related advisories and sources
Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.
CVE-2025-32387 · CVE overview and exploitation status
cve-program · CVE-2025-32387
- https://github.com/helm/helm/security/advisories/GHSA-5xqw-8hwv-wg92
- https://github.com/helm/helm/commit/d8ca55fc669645c10c0681d49723f4bb8c0b1ce7
euvd · EUVD-2025-10671
- https://github.com/helm/helm/security/advisories/GHSA-5xqw-8hwv-wg92
- https://github.com/helm/helm/commit/d8ca55fc669645c10c0681d49723f4bb8c0b1ce7
nvd · CVE-2025-32387
- https://github.com/helm/helm/commit/d8ca55fc669645c10c0681d49723f4bb8c0b1ce7
- https://github.com/helm/helm/security/advisories/GHSA-5xqw-8hwv-wg92
osv · GHSA-5xqw-8hwv-wg92
- https://github.com/helm/helm/security/advisories/GHSA-5xqw-8hwv-wg92
- https://nvd.nist.gov/vuln/detail/CVE-2025-32387
- https://github.com/helm/helm/commit/d8ca55fc669645c10c0681d49723f4bb8c0b1ce7
- https://github.com/helm/helm
osv · GO-2025-3602
Related changes
Linked by CVE identifierNo related changes are available here.