{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0bd8762824e73a3cce7b7560a97463301764b616"
            },
            {
              "fixed": "2d53ee7daabe733deb81f51d2cc90188f8ad59a1"
            },
            {
              "fixed": "82e53e7281c71e174f9f5877c566a623c637b406"
            },
            {
              "fixed": "5252db8fb604321133138c7069d6fc3fcd89cdee"
            },
            {
              "fixed": "2636d061bc237a2446a146e42dcc6563acfa7432"
            },
            {
              "fixed": "7f68f7928484f463a5bc0d50e6fdd8d16f55a5aa"
            },
            {
              "fixed": "234cd54fc500f69db43e37de38603da617fbbeea"
            },
            {
              "fixed": "d4bcc202a3530c856e1cb183384bc9cc8fddab22"
            },
            {
              "fixed": "2496fa0b7d180b3ad356b514e7ff93bb14e6140a"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.12.0"
            },
            {
              "fixed": "5.10.266"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.217"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.184"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.148"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.101"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "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-2026-72051.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ip6_tunnel: require CAP_NET_ADMIN in the device netns for changelink\n\nip6_tnl_changelink() operates on at most two netns, dev_net(dev) and the\ntunnel link netns t-\u003enet. They differ once the device is created in or\nmoved to a netns other than the one the request runs in. The rtnl\nchangelink path checks CAP_NET_ADMIN only against dev_net(dev), so a\ncaller privileged there but not in t-\u003enet can rewrite a tunnel that\nlives in t-\u003enet.\n\nGate ip6_tnl_changelink() on rtnl_dev_link_net_capable() at its top,\nbefore any attribute is parsed.",
  "id": "CVE-2026-72051",
  "modified": "2026-08-25T03:51:31.204658872Z",
  "published": "2026-08-15T05:52:08.445Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/234cd54fc500f69db43e37de38603da617fbbeea"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2496fa0b7d180b3ad356b514e7ff93bb14e6140a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2636d061bc237a2446a146e42dcc6563acfa7432"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2d53ee7daabe733deb81f51d2cc90188f8ad59a1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5252db8fb604321133138c7069d6fc3fcd89cdee"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7f68f7928484f463a5bc0d50e6fdd8d16f55a5aa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/82e53e7281c71e174f9f5877c566a623c637b406"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d4bcc202a3530c856e1cb183384bc9cc8fddab22"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72051.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72051"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "net: ip6_tunnel: require CAP_NET_ADMIN in the device netns for changelink"
}