linux-microvm-6.18 — security advisory

{
  "id": "67e6201e89471092b120d1bb531078f19655ffdf063bfbc8c599bd77dacb49d2",
  "url": "https://osv.dev/vulnerability/CGA-949h-r9hg-9r9j",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CGA-949h-r9hg-9r9j",
    "summary": "CGA-949h-r9hg-9r9j",
    "evidence": "osv:CGA-949h-r9hg-9r9j",
    "products": [
      {
        "name": {
          "value": "linux-microvm-6.18",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CGA-949h-r9hg-9r9j",
      "aliases": [
        "CGA-949h-r9hg-9r9j"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "linux-microvm-6.18",
            "purl": "pkg:apk/chainguard/linux-microvm-6.18?arch=x86_64",
            "ecosystem": "Chainguard"
          },
          "database_specific": {
            "source": "https://advisories.cgr.dev/chainguard/v3/osv/CGA-949h-r9hg-9r9j.json"
          },
          "ecosystem_specific": {
            "components": [
              {
                "component_name": "linux-microvm-6.18",
                "component_purl": "pkg:apk/linux-microvm-6.18@6.18.56-r0",
                "component_type": "apk",
                "component_version": "6.18.56-r0",
                "component_location": "/.PKGINFO",
                "latest_event_status": "detection",
                "latest_event_timestamp": "2026-10-15T01:30:34Z"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-15T05:03:29.234665840Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-64400",
        "GHSA-cg5c-7728-29v7"
      ],
      "references": [
        "https://git.kernel.org/stable/c/54bab9ba5a9f156ffa9324fcbe5a356fd0242f95",
        "https://git.kernel.org/stable/c/8c9a4f1327eb71efbf14842e7b8a6d965077eb67",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64400.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-64400",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-64400",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 319988,
  "published_at": "2026-10-15T01:30:34+00:00"
}