{
  "cveId": "CVE-2026-63308",
  "url": "https://patchblox.com/security/cve/CVE-2026-63308",
  "summary": "CVE-2026-63308 is fixed in helm on 1 platform, first by SUSE-SU-2026:3882-1, released August 31, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "Helm Files.Lines Denial of Service via Empty Chart Files",
  "description": "This update for helm fixes the following issues:\n\n\t\n- CVE-2026-41178: \u0060go.opentelemetry.io/otel/baggage\u0060,\u0060go.opentelemetry.io/otel/propagation\u0060: no rejection of raw-length\n  headers in baggage parsing allows for DoS via oversized inputs (bsc#1276510).\n- CVE-2026-63308: processing zero-length byte slices in template chart files can trigger an index out-of-range panic\n  (bsc#1272402).\n- gRPC-Go: several issues affecting the xDS RBAC authorization engine and the HTTP/2 transport server implementation\n  (bsc#1276514).\n\nChanges for helm:\n\n- Bump vendor to address various security issues:\n  * golang.org/x/mod@v0.40.0\n  * oras.land/oras-go/v2@v2.6.2\n  * google.golang.org/grpc@v1.82.1\n  * go.opentelemetry.io/otel@v1.44.0",
  "published": "2026-07-23T01:05:35Z",
  "severity": "Moderate",
  "cvss": 4.3,
  "cwe": "Improper Validation of Array Index",
  "epss": 0.00486,
  "epssPercentile": 0.42148,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-63308",
  "fixes": [
    {
      "platform": "linux",
      "product": "helm",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "3.21.3-160000.2.1",
      "fix": "OPENSUSE-SU-2026:21809-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21809-1",
      "released": "2026-09-08T14:29:32Z"
    },
    {
      "platform": "linux",
      "product": "helm",
      "release": "sles 15.6",
      "fixedVersion": "3.21.3-150000.1.93.1",
      "fix": "SUSE-SU-2026:3882-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3882-1",
      "released": "2026-08-31T14:30:35Z"
    },
    {
      "platform": "linux",
      "product": "helm",
      "release": "sles 15.7",
      "fixedVersion": "3.21.3-150000.1.93.1",
      "fix": "SUSE-SU-2026:3882-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3882-1",
      "released": "2026-08-31T14:30:35Z"
    },
    {
      "platform": "linux",
      "product": "helm",
      "release": "sles 16.0",
      "fixedVersion": "3.21.3-160000.2.1",
      "fix": "SUSE-SU-2026:23688-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23688-1",
      "released": "2026-09-08T14:29:35Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-10T07:50:38Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}