{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "aee738236dca0d0870789138ec494e15d6303566"
            },
            {
              "fixed": "971f17f5d91045404e3914029ea57c3da90179a4"
            },
            {
              "fixed": "45fc766bc756ff1d66f8ca026a9c4f7f764adfae"
            },
            {
              "fixed": "d6f4e217d663ede5becc2fd6cb612c749677387b"
            },
            {
              "fixed": "4c7f8436b19a2a3acc0cb6b6e3becd6796ae5c57"
            },
            {
              "fixed": "464af6fc2b1dcc74005b7f58ee3812b17777efee"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.140"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.88"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.30"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46131.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: x86: check for nEPT/nNPT in slow flush hypercalls\n\nChecking is_guest_mode(vcpu) is incorrect, because translate_nested_gpa()\nis only valid if an L2 guest is running *with nested EPT/NPT enabled*.\nInstead use the same condition as translate_nested_gpa() itself.",
  "id": "CVE-2026-46131",
  "modified": "2026-07-08T05:36:02.178331728Z",
  "published": "2026-05-28T09:35:46.220Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/45fc766bc756ff1d66f8ca026a9c4f7f764adfae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/464af6fc2b1dcc74005b7f58ee3812b17777efee"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4c7f8436b19a2a3acc0cb6b6e3becd6796ae5c57"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/971f17f5d91045404e3914029ea57c3da90179a4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d6f4e217d663ede5becc2fd6cb612c749677387b"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46131.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46131"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "KVM: x86: check for nEPT/nNPT in slow flush hypercalls"
}