{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "ab427db17885814069bae891834f20842f0ac3a4"
            },
            {
              "fixed": "025a41e76b51fbc7b8eaa5bacbaa9621d00e6aa7"
            },
            {
              "fixed": "84460b644329e25809b4a6d9279d6359d7fd8ebc"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72417.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: flowtable: Validate iph-\u003eihl in nf_flow_ip4_tunnel_proto()\n\nAdd sanity check for iph-\u003eihl field in nf_flow_ip4_tunnel_proto() before\nusing it to compute the header size, avoiding out-of-bounds access with\nmalformed IP headers.\nWhile at it, use iph-\u003eprotocol instead of the hardcoded IPPROTO_IPIP\nconstant when setting ctx-\u003etun.proto and reference ctx-\u003etun.hdr_size\nwhen updating ctx-\u003eoffset.",
  "id": "CVE-2026-72417",
  "modified": "2026-08-16T03:31:27.428973516Z",
  "published": "2026-08-15T05:56:37.547Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/025a41e76b51fbc7b8eaa5bacbaa9621d00e6aa7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/84460b644329e25809b4a6d9279d6359d7fd8ebc"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72417.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72417"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "netfilter: flowtable: Validate iph-\u003eihl in nf_flow_ip4_tunnel_proto()"
}