Sudo through 1.9.17p2 Intercept Policy Bypass via execveat

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-82474",
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "dateUpdated": "2026-08-29T16:35:33.836Z",
    "dateReserved": "2026-08-29T14:11:14.262Z",
    "datePublished": "2026-08-29T16:35:33.836Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck",
        "dateUpdated": "2026-08-29T16:35:33.836Z"
      },
      "datePublic": "2026-03-20T00:00:00.000Z",
      "title": "Sudo through 1.9.17p2 Intercept Policy Bypass via execveat",
      "descriptions": [
        {
          "lang": "en",
          "value": "Sudo through 1.9.17p2 fails to apply intercept policy checks to the execveat system call in ptrace-based intercept mode. Users permitted to run specific commands can execute denied programs by calling execveat directly or through fexecve, bypassing policy enforcement and logging."
        }
      ],
      "affected": [
        {
          "vendor": "sudo-project",
          "product": "sudo",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "1.9.17p2"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "Protection Mechanism Failure",
              "cweId": "CWE-693",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://github.com/sudo-project/sudo/commit/71fbe42dcd5a1c8f799540583a2dfb2ae6221edf",
          "name": "Patch Commit",
          "tags": [
            "patch"
          ]
        },
        {
          "url": "https://github.com/sudo-project/sudo/blob/v1.9.17p2/src/exec_ptrace.c",
          "tags": [
            "technical-description"
          ]
        },
        {
          "url": "https://github.com/sudo-project/sudo",
          "tags": [
            "product"
          ]
        },
        {
          "url": "https://www.vulncheck.com/advisories/sudo-through-1.9-17p2-intercept-policy-bypass-via-execveat",
          "name": "VulnCheck Advisory: Sudo through 1.9.17p2 Intercept Policy Bypass via execveat",
          "tags": [
            "third-party-advisory"
          ]
        }
      ],
      "metrics": [
        {
          "format": "CVSS"
        },
        {
          "format": "CVSS",
          "cvssV3_1": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "attackVector": "LOCAL",
            "attackComplexity": "LOW",
            "privilegesRequired": "LOW",
            "userInteraction": "NONE",
            "scope": "UNCHANGED",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH"
          }
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "XlabAI Team of Tencent Xuanwu Lab",
          "type": "finder"
        },
        {
          "lang": "en",
          "value": "Guannan Wang",
          "type": "finder"
        },
        {
          "lang": "en",
          "value": "Zhanpeng Liu",
          "type": "finder"
        },
        {
          "lang": "en",
          "value": "Guancheng Li",
          "type": "finder"
        },
        {
          "lang": "en",
          "value": "Nofil Qasim",
          "type": "finder"
        },
        {
          "lang": "en",
          "value": "Quentin Chalabi",
          "type": "finder"
        }
      ]
    }
  }
}