{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2"
            },
            {
              "fixed": "4435888e1bf139d2bfe5911643d4217382136743"
            },
            {
              "fixed": "063f43361e884acd7300790e90194430275d0d0c"
            },
            {
              "fixed": "726abf97566867f808fec9d8a408eb9698bd570a"
            },
            {
              "fixed": "367abcacc13a8e2e7624408b7f593bd1e60e49d9"
            },
            {
              "fixed": "5d634afb8b83b49de562792fd0d047416a43bd4d"
            },
            {
              "fixed": "cea435ea7e868ea6fdf039bc4f2090c1d829b556"
            },
            {
              "fixed": "62443dc21114c0bbc476fa62973db89743f2f137"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.12"
            },
            {
              "fixed": "5.15.210"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.176"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.143"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.94"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.36"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53131.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: require Ethernet MAC header before using eth_hdr()\n\n`ip6t_eui64`, `xt_mac`, the `bitmap:ip,mac`, `hash:ip,mac`, and\n`hash:mac` ipset types, and `nf_log_syslog` access `eth_hdr(skb)`\nafter either assuming that the skb is associated with an Ethernet\ndevice or checking only that the `ETH_HLEN` bytes at\n`skb_mac_header(skb)` lie between `skb-\u003ehead` and `skb-\u003edata`.\n\nMake these paths first verify that the skb is associated with an\nEthernet device, that the MAC header was set, and that it spans at\nleast a full Ethernet header before accessing `eth_hdr(skb)`.",
  "id": "CVE-2026-53131",
  "modified": "2026-07-08T05:38:15.660402089Z",
  "published": "2026-06-25T08:38:20.489Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/063f43361e884acd7300790e90194430275d0d0c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/367abcacc13a8e2e7624408b7f593bd1e60e49d9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4435888e1bf139d2bfe5911643d4217382136743"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5d634afb8b83b49de562792fd0d047416a43bd4d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/62443dc21114c0bbc476fa62973db89743f2f137"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/726abf97566867f808fec9d8a408eb9698bd570a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cea435ea7e868ea6fdf039bc4f2090c1d829b556"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53131.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53131"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "netfilter: require Ethernet MAC header before using eth_hdr()"
}