{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "c4b885139203d37f76662c37ae645fe8e0f4e4e5"
            },
            {
              "fixed": "eb323f7b82d2e2f638de0cc2a177803eb20e0707"
            },
            {
              "fixed": "fc1c518bb1f054831ecabb32da9b8e1dff9699c6"
            },
            {
              "fixed": "f98b7f85e04b40e28b08c461ded0cc79f14f5509"
            },
            {
              "fixed": "82664d0f1ba25e4f9a71994954abae24c60f4067"
            },
            {
              "fixed": "b130a6eefa02bd4d475f2f059da8bcfb3e7d18d9"
            },
            {
              "fixed": "938867e870fb5471bb16f442aeac81326e05bf65"
            },
            {
              "fixed": "392cc1d8408b5665215c1e9290bbf0f92339b043"
            },
            {
              "fixed": "4b2b4d7d4e203c92db8966b163edfacb1f0e1e29"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.17"
            },
            {
              "fixed": "5.10.258"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.209"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.175"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.141"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.91"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.33"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52920.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: xt_policy: fix strict mode inbound policy matching\n\nmatch_policy_in() walks sec_path entries from the last transform to the\nfirst one, but strict policy matching needs to consume info-\u003epol[] in\nthe same forward order as the rule layout.\n\nDerive the strict-match policy position from the number of transforms\nalready consumed so that multi-element inbound rules are matched\nconsistently.",
  "id": "CVE-2026-52920",
  "modified": "2026-07-10T03:54:08.668139449Z",
  "published": "2026-06-24T07:14:15.866Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/392cc1d8408b5665215c1e9290bbf0f92339b043"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4b2b4d7d4e203c92db8966b163edfacb1f0e1e29"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/82664d0f1ba25e4f9a71994954abae24c60f4067"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/938867e870fb5471bb16f442aeac81326e05bf65"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b130a6eefa02bd4d475f2f059da8bcfb3e7d18d9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eb323f7b82d2e2f638de0cc2a177803eb20e0707"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f98b7f85e04b40e28b08c461ded0cc79f14f5509"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fc1c518bb1f054831ecabb32da9b8e1dff9699c6"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52920.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-52920"
    },
    {
      "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:L/UI:N/S:U/C:H/I:L/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "netfilter: xt_policy: fix strict mode inbound policy matching"
}