{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-79619",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
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                "timestamp": "2026-08-26T15:47:13.454769Z",
                "version": "2.0.3"
              },
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          "dateUpdated": "2026-08-26T15:47:19.764Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
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        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Linux"
          ],
          "product": "OpenZFS",
          "repo": "https://github.com/openzfs/zfs",
          "vendor": "OpenZFS",
          "versions": [
            {
              "lessThan": "2.2.11",
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              "version": "0.7.0",
              "versionType": "semver"
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              "version": "2.4.0",
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      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Erica Windisch"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Rob Norris"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "On Linux, several OpenZFS ioctl authorization checks accept a capability held only within a user-created, unprivileged namespace as equivalent to real host privilege, allowing an unprivileged local user to perform operations that should require root. Affected operations include pool-administrative operations (eg create, import, destroy), pool event log access (zpool events) and fault injection (zinject). Exploiting the problem requires only that the local user is permitted to open /dev/zfs (governed by local device permissions) and that the kernel permits unprivileged user namespace creation. No prior access to the target pool or its underlying devices is needed."
        }
      ],
      "metrics": [
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            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
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            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-863",
              "description": "CWE-863 Incorrect Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
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      "providerMetadata": {
        "dateUpdated": "2026-08-27T17:32:03.057Z",
        "orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
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      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/openzfs/zfs/pull/18959"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/advisories/GHSA-mhf5-q8gw-qg9v"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/openzfs/zfs/releases/tag/zfs-2.4.4"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/openzfs/zfs/releases/tag/zfs-2.3.9"
        },
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            "product"
          ],
          "url": "https://github.com/openzfs/zfs/releases/tag/zfs-2.2.11"
        },
        {
          "tags": [
            "mailing-list"
          ],
          "url": "https://seclists.org/fulldisclosure/2026/Aug/40"
        }
      ],
      "title": "OpenZFS: user-namespace capability check allows unprivileged local authorization bypass",
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    "cveId": "CVE-2026-79619",
    "datePublished": "2026-08-26T12:50:10.502Z",
    "dateReserved": "2026-08-25T08:10:52.983Z",
    "dateUpdated": "2026-08-27T17:32:03.057Z",
    "state": "PUBLISHED"
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}