{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "690afc165bb314354667f67157c1a1aea7dc797a"
            },
            {
              "fixed": "129f8939e5af683cec3a1a5edcb40a64636ad81e"
            },
            {
              "fixed": "e3724dedf57761c6de52f4d604ec74f66fd61611"
            },
            {
              "fixed": "220162c9fedbe992da70d70f50a10da4f45f914c"
            },
            {
              "fixed": "1d4d8ee002083ca4ead5353662bf8362428af57f"
            },
            {
              "fixed": "0caa9f348f8b5356900de77b0bb89a697c4aff20"
            },
            {
              "fixed": "03d8843b143ebbbfaf48511922abc6e886575a61"
            },
            {
              "fixed": "c38c8b0db3c65b597e7ece317b6cb59de3d15e69"
            },
            {
              "fixed": "f00a50876d2818bd6dc86fa98b3ef360884c53c8"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "d0201d2405dac8d9b16773e97709925e397552d0"
            },
            {
              "last_affected": "7943bb0f06365cf5e32f3cf8a6b29eeae981fb8a"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "4.19.100"
            },
            {
              "fixed": "4.20"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "5.4.16"
            },
            {
              "fixed": "5.5"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.5.0"
            },
            {
              "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-2026-72052.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ip6_gre: require CAP_NET_ADMIN in the device netns for changelink\n\nip6gre_changelink() and ip6erspan_changelink() operate on at most two\nnetns, dev_net(dev) and the tunnel link netns t-\u003enet. They differ once\nthe device is created in or moved to a netns other than the one the\nrequest runs in. The rtnl changelink path checks CAP_NET_ADMIN only\nagainst dev_net(dev), so a caller privileged there but not in t-\u003enet can\nrewrite a tunnel that lives in t-\u003enet.\n\nGate both ops on rtnl_dev_link_net_capable() at their top, before any\nattribute is parsed.",
  "id": "CVE-2026-72052",
  "modified": "2026-08-18T03:30:55.886560255Z",
  "published": "2026-08-15T05:52:09.194Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/03d8843b143ebbbfaf48511922abc6e886575a61"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0caa9f348f8b5356900de77b0bb89a697c4aff20"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/129f8939e5af683cec3a1a5edcb40a64636ad81e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1d4d8ee002083ca4ead5353662bf8362428af57f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/220162c9fedbe992da70d70f50a10da4f45f914c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c38c8b0db3c65b597e7ece317b6cb59de3d15e69"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e3724dedf57761c6de52f4d604ec74f66fd61611"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f00a50876d2818bd6dc86fa98b3ef360884c53c8"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72052.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72052"
    },
    {
      "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_gre: require CAP_NET_ADMIN in the device netns for changelink"
}