{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "4ecce920e13ace16a5ba45efe8909946c28fb2ad"
            },
            {
              "fixed": "bfebe5110fd135d86d65a0a346e14c106b02028b"
            },
            {
              "fixed": "5b439f39f33ec15d319ced3b025e122346fba987"
            },
            {
              "fixed": "285bd4a5f3f156aa5869843b47a1b1380b774241"
            },
            {
              "fixed": "2fdd6d196c656b376cc251e1e9ff110b3ed522e1"
            },
            {
              "fixed": "9f88a99ed511651b2dc2177d6854b2d1b8322e75"
            },
            {
              "fixed": "f6f5ee2aa33b350c671721b965251c42cebb962e"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.11.0"
            },
            {
              "fixed": "6.1.183"
            }
          ],
          "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": "6.18.42"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68343.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: validate DFS referral PathConsumed\n\nparse_dfs_referrals() validates that the response contains the fixed\nreferral entry array and, on for-next, the per-referral string offsets.\nHowever, the response also contains a PathConsumed value that is later\nused for DFS path parsing.\n\nIf a malformed response provides a PathConsumed value larger than the\nsearch name, later DFS parsing can advance beyond the end of the path.\n\nValidate PathConsumed against the search name length before storing it in\nthe parsed referral.",
  "id": "CVE-2026-68343",
  "modified": "2026-08-21T03:30:35.321603299Z",
  "published": "2026-08-10T12:03:19.939Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/285bd4a5f3f156aa5869843b47a1b1380b774241"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2fdd6d196c656b376cc251e1e9ff110b3ed522e1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5b439f39f33ec15d319ced3b025e122346fba987"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9f88a99ed511651b2dc2177d6854b2d1b8322e75"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bfebe5110fd135d86d65a0a346e14c106b02028b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f6f5ee2aa33b350c671721b965251c42cebb962e"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68343.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68343"
    },
    {
      "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:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "smb: client: validate DFS referral PathConsumed"
}