linux-firecracker-6.18 — security advisory

{
  "id": "3c4c4a900b326d5dd916db39ae6f9052849a3c6d8730ffa5c5b04da58519e99e",
  "url": "https://osv.dev/vulnerability/CGA-49wr-rw7x-847w",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CGA-49wr-rw7x-847w",
    "summary": "CGA-49wr-rw7x-847w",
    "evidence": "osv:CGA-49wr-rw7x-847w",
    "products": [
      {
        "name": {
          "value": "linux-firecracker-6.18",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.18.55-r0",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CGA-49wr-rw7x-847w",
      "aliases": [
        "CGA-49wr-rw7x-847w"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6.18.55-r0"
                }
              ]
            }
          ],
          "package": {
            "name": "linux-firecracker-6.18",
            "purl": "pkg:apk/chainguard/linux-firecracker-6.18?arch=x86_64",
            "ecosystem": "Chainguard"
          },
          "database_specific": {
            "source": "https://advisories.cgr.dev/chainguard/v3/osv/CGA-49wr-rw7x-847w.json"
          },
          "ecosystem_specific": {
            "components": [
              {
                "component_name": "linux-firecracker-6.18",
                "component_purl": "pkg:apk/linux-firecracker-6.18@6.18.51-r1",
                "component_type": "apk",
                "component_version": "6.18.51-r1",
                "component_location": "/.PKGINFO",
                "latest_event_status": "fixed",
                "latest_event_timestamp": "2026-10-09T15:31:30Z"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-10T05:34:54.413062532Z",
      "provider": "osv",
      "upstream": [
        "CVE-2023-39176",
        "GHSA-jf42-2pw2-333x"
      ],
      "references": [
        "https://access.redhat.com/security/cve/CVE-2023-39176",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2326503",
        "https://www.zerodayinitiative.com/advisories/ZDI-24-586/"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2023-39176",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 139422,
  "published_at": "2026-09-11T19:01:22+00:00"
}