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

{
  "id": "573c91421d40ef406e2e6361c6ef572d6f1e5c16b9c0752ca4ffc9da5d70110a",
  "url": "https://osv.dev/vulnerability/CVE-2025-32387",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Helm Allows A Specially Crafted JSON Schema To Cause A Stack Overflow",
    "summary": "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.",
    "evidence": "osv:CVE-2025-32387",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-32387",
      "aliases": [
        "BIT-helm-2025-32387",
        "CVE-2025-32387",
        "GHSA-5xqw-8hwv-wg92",
        "GO-2025-3602"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/helm/helm",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "e4da49785aa6e6ee2b86efd5dd9e43400318262b"
                },
                {
                  "fixed": "d8ca55fc669645c10c0681d49723f4bb8c0b1ce7"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:helm:helm:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.17.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "d8ca55fc669645c10c0681d49723f4bb8c0b1ce7"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.17.2",
            "v3.17.1",
            "v3.17.0-rc.1",
            "v3.17.0",
            "v3.12.0-dev.1",
            "v3.0.0-beta.5",
            "v3.0.0-beta.4",
            "v3.0.0-beta.3",
            "v3.0.0-beta.2",
            "v3.0.0-beta.1",
            "v3.0.0-alpha.2",
            "v3.0.0-alpha.1",
            "v2.8.0-rc.1",
            "v2.7.0",
            "v2.7.0-rc1",
            "v2.6.0",
            "v2.5.0",
            "v2.4.0",
            "v2.3.0",
            "v2.2.0",
            "v2.1.0",
            "v2.0.0",
            "v2.0.0-rc.2",
            "v2.0.0-rc.1",
            "v2.0.0-beta.2",
            "v2.0.0-beta.1",
            "v2.0.0-alpha.5",
            "v2.0.0-alpha.4",
            "v2.0.0-alpha.2",
            "v2.0.0-alpha.1",
            "1.999.0",
            "v1.2",
            "v1.1",
            "v1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-32387.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:22.603036815Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/32xxx/CVE-2025-32387.json",
        "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"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-121",
          "CWE-674"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/32xxx/CVE-2025-32387.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-32387",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 488535,
  "published_at": "2025-04-09T22:28:33.476+00:00"
}