linux-microvm-6.18-image-compressed — security advisory

{
  "id": "a5c5f8f187ab87781e71a57e60bc30e980ec6a5032b31a6335300a4955f819dd",
  "url": "https://osv.dev/vulnerability/CGA-5fqx-wfvm-m2vg",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CGA-5fqx-wfvm-m2vg",
    "summary": "CGA-5fqx-wfvm-m2vg",
    "evidence": "osv:CGA-5fqx-wfvm-m2vg",
    "products": [
      {
        "name": {
          "value": "linux-microvm-6.18-image-compressed",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "CGA-5fqx-wfvm-m2vg",
      "aliases": [
        "CGA-5fqx-wfvm-m2vg"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "linux-microvm-6.18-image-compressed",
            "purl": "pkg:apk/chainguard/linux-microvm-6.18-image-compressed?arch=x86_64",
            "ecosystem": "Chainguard"
          },
          "database_specific": {
            "source": "https://advisories.cgr.dev/chainguard/v3/osv/CGA-5fqx-wfvm-m2vg.json"
          },
          "ecosystem_specific": {
            "components": [
              {
                "component_name": "linux-microvm-6.18-image-compressed",
                "component_purl": "pkg:apk/linux-microvm-6.18-image-compressed@6.18.56-r0",
                "component_type": "apk",
                "component_version": "6.18.56-r0",
                "component_location": "/.PKGINFO",
                "latest_event_status": "detection",
                "latest_event_timestamp": "2026-10-15T03:03:58Z"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-15T17:26:26.231039948Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-31589",
        "GHSA-mg7h-q7hw-m596"
      ],
      "references": [
        "https://git.kernel.org/stable/c/615d9bb2ccad42f9e21d837431e401db2e471195",
        "https://git.kernel.org/stable/c/b667df39d98a7a24be7c2a40ff0863dac1ad2cd7",
        "https://git.kernel.org/stable/c/c330e65ea59c4805d6ab6757c4ddfe8c63acef31",
        "https://git.kernel.org/stable/c/efc52947247a21bbf79059539bbbd40f4ea76f00",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31589.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-31589",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-31589",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 334487,
  "published_at": "2026-10-15T03:03:58+00:00"
}