{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "5e6700b3bf98fe98d630bf9c939ad4c85ce95592"
            },
            {
              "fixed": "cb41b308e9d867725d965b291dd085028e36a480"
            },
            {
              "fixed": "c5a0ae895432596b2f464172da8218e2d84e2932"
            },
            {
              "fixed": "7d139dec96691cde96cb40ed293e2d13d994fb4f"
            },
            {
              "fixed": "388ccffbd2e7e5e4271f291085a7451865705305"
            },
            {
              "fixed": "c0ea1aedb37bb979e864ed7787975434bbd9db73"
            },
            {
              "fixed": "3118e97dae533fb45964b87bbed1801afcff7c65"
            },
            {
              "fixed": "99ae3248b33df94201915d9c32e7470cdf08cfcd"
            },
            {
              "fixed": "27ccb68e7cccead5d8c611665a45d23032d468b3"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.11.0"
            },
            {
              "fixed": "5.10.261"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.212"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.178"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.97"
            }
          ],
          "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-2026-72061.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sit: require CAP_NET_ADMIN in the device netns for changelink\n\nipip6_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 ipip6_changelink() on rtnl_dev_link_net_capable() at its top,\nbefore any attribute is parsed. sit was the one tunnel type not covered\nby the recent series that added this check to the other changelink()\nhandlers.",
  "id": "CVE-2026-72061",
  "modified": "2026-08-18T03:31:21.055292605Z",
  "published": "2026-08-15T05:52:15.823Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/27ccb68e7cccead5d8c611665a45d23032d468b3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3118e97dae533fb45964b87bbed1801afcff7c65"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/388ccffbd2e7e5e4271f291085a7451865705305"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7d139dec96691cde96cb40ed293e2d13d994fb4f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/99ae3248b33df94201915d9c32e7470cdf08cfcd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c0ea1aedb37bb979e864ed7787975434bbd9db73"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c5a0ae895432596b2f464172da8218e2d84e2932"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cb41b308e9d867725d965b291dd085028e36a480"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72061.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72061"
    },
    {
      "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: sit: require CAP_NET_ADMIN in the device netns for changelink"
}