{"id":"CVE-2025-32387","aliases":["BIT-helm-2025-32387","GHSA-5xqw-8hwv-wg92","GO-2025-3602"],"url":"https://o3.security/vulnerability/CVE-2025-32387","summary":"Helm Allows A Specially Crafted JSON Schema To Cause A Stack Overflow","details":"A Helm contributor discovered that a specially crafted JSON Schema within a chart can lead to a stack overflow.\n\n### Impact\nA 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. \n\n### Patches\nThis issue has been resolved in Helm v3.17.3.\n\n### Workarounds\nEnsure 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.\n\n### For more information\nHelm's security policy is spelled out in detail in our [SECURITY](https://github.com/helm/community/blob/master/SECURITY.md) document.\n\n### Credits\nDisclosed by Jakub Ciolek at AlphaSense.","published":"2025-04-09T22:28:33.476Z","modified":"2026-08-12T03:51:31.830062907Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"helm.sh/helm/v3","fixedVersion":"3.17.3"}],"fix":{"url":"https://github.com/helm/helm/commit/d8ca55fc669645c10c0681d49723f4bb8c0b1ce7","label":"helm/helm@d8ca55f"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/32xxx/CVE-2025-32387.json"},{"type":"ADVISORY","url":"https://github.com/helm/helm/security/advisories/GHSA-5xqw-8hwv-wg92"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-32387"},{"type":"FIX","url":"https://github.com/helm/helm/commit/d8ca55fc669645c10c0681d49723f4bb8c0b1ce7"},{"type":"PACKAGE","url":"https://github.com/helm/helm"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:31.830062907Z"}}