bit-helm-2026-63308

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "helm",
        "purl": "pkg:bitnami/helm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.2.4"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "type": "CVSS_V4"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-63308"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:helm:helm:*:*:*:*:*:*:*:*"
    ],
    "severity": "Medium"
  },
  "details": "Helm through 4.2.3, fixed in commit ba6c9a2, contains a denial of service vulnerability in the Files.Lines template helper in pkg/engine/files.go that allows attackers to trigger an index out of range panic by including zero-length byte slices in chart files. Attackers can include empty files in Helm charts to cause deterministic render failures across template, install, upgrade, lint, and SDK Engine.Render operations.",
  "id": "BIT-helm-2026-63308",
  "modified": "2026-10-30T09:15:51.334Z",
  "published": "2026-07-31T08:42:54.137Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://github.com/helm/helm/commit/ba6c9a29efa7bf9198dad6a5ec12b4fb30c96017"
    },
    {
      "type": "EVIDENCE",
      "url": "https://github.com/helm/helm/issues/32279"
    },
    {
      "type": "FIX",
      "url": "https://github.com/helm/helm/pull/32290"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63308"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/chat2db-insecure-direct-object-reference-via-get-api-connection-datasource"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/helm-files-lines-denial-of-service-via-empty-chart-files"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "Helm Files.Lines Denial of Service via Empty Chart Files"
}