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CVE-2026-66881

🗓️ 05 Aug 2026 19:43:48Reported by EEFType 
cve
 cve
🔗 web.nvd.nist.gov👁 108 Views🌐 WEB

Relative path traversal lets file entries write attacker-controlled data to arbitrary paths in notebooks.

Related
Detection
Affected
Refs
Paths
NVD
Vulners
CNA
Node
OR
livebooklivebookRange0.11.0–0.18.7
livebooklivebookRange0.19.0–0.19.9
[
  {
    "collectionURL": "https://repo.hex.pm",
    "cpes": [
      "cpe:2.3:a:livebook-dev:livebook:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "Elixir.Livebook.LiveMarkdown.Import",
      "Elixir.Livebook.Session",
      "Elixir.Livebook.FileSystem.Utils"
    ],
    "packageName": "livebook",
    "packageURL": "pkg:hex/livebook",
    "product": "livebook",
    "programFiles": [
      "lib/livebook/live_markdown/import.ex",
      "lib/livebook/session.ex",
      "lib/livebook/file_system/utils.ex"
    ],
    "programRoutines": [
      {
        "name": "'Elixir.Livebook.LiveMarkdown.Import':file_entry_metadata_to_attrs/1"
      },
      {
        "name": "'Elixir.Livebook.Session':file_entry_cache_file/2"
      },
      {
        "name": "'Elixir.Livebook.Session':to_attachment_file_entry/2"
      },
      {
        "name": "'Elixir.Livebook.FileSystem.Utils':resolve_unix_like_path/2"
      }
    ],
    "repo": "https://github.com/livebook-dev/livebook",
    "vendor": "livebook-dev",
    "versions": [
      {
        "lessThan": "0.18.7",
        "status": "affected",
        "version": "0.11.0",
        "versionType": "semver"
      },
      {
        "lessThan": "0.19.9",
        "status": "affected",
        "version": "0.19.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "collectionURL": "https://ghcr.io",
    "cpes": [
      "cpe:2.3:a:livebook-dev:livebook:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "Elixir.Livebook.LiveMarkdown.Import",
      "Elixir.Livebook.Session",
      "Elixir.Livebook.FileSystem.Utils"
    ],
    "packageName": "livebook-dev/livebook",
    "packageURL": "pkg:oci/livebook?repository_url=ghcr.io%2Flivebook-dev",
    "product": "livebook",
    "programFiles": [
      "lib/livebook/live_markdown/import.ex",
      "lib/livebook/session.ex",
      "lib/livebook/file_system/utils.ex"
    ],
    "programRoutines": [
      {
        "name": "'Elixir.Livebook.LiveMarkdown.Import':file_entry_metadata_to_attrs/1"
      },
      {
        "name": "'Elixir.Livebook.Session':file_entry_cache_file/2"
      },
      {
        "name": "'Elixir.Livebook.Session':to_attachment_file_entry/2"
      },
      {
        "name": "'Elixir.Livebook.FileSystem.Utils':resolve_unix_like_path/2"
      }
    ],
    "vendor": "livebook-dev",
    "versions": [
      {
        "lessThan": "0.18.7",
        "status": "affected",
        "version": "0.11.0",
        "versionType": "other"
      },
      {
        "lessThan": "0.19.9",
        "status": "affected",
        "version": "0.19.0",
        "versionType": "other"
      },
      {
        "lessThan": "0.18.7-cuda12",
        "status": "affected",
        "version": "0.11.0-cuda12",
        "versionType": "other"
      },
      {
        "lessThan": "0.19.9-cuda12",
        "status": "affected",
        "version": "0.19.0-cuda12",
        "versionType": "other"
      }
    ]
  },
  {
    "collectionURL": "https://github.com",
    "cpes": [
      "cpe:2.3:a:livebook-dev:livebook:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "Elixir.Livebook.LiveMarkdown.Import",
      "Elixir.Livebook.Session",
      "Elixir.Livebook.FileSystem.Utils"
    ],
    "packageName": "livebook-dev/livebook",
    "packageURL": "pkg:github/livebook-dev/livebook",
    "product": "livebook",
    "programFiles": [
      "lib/livebook/live_markdown/import.ex",
      "lib/livebook/session.ex",
      "lib/livebook/file_system/utils.ex"
    ],
    "programRoutines": [
      {
        "name": "'Elixir.Livebook.LiveMarkdown.Import':file_entry_metadata_to_attrs/1"
      },
      {
        "name": "'Elixir.Livebook.Session':file_entry_cache_file/2"
      },
      {
        "name": "'Elixir.Livebook.Session':to_attachment_file_entry/2"
      },
      {
        "name": "'Elixir.Livebook.FileSystem.Utils':resolve_unix_like_path/2"
      }
    ],
    "repo": "https://github.com/livebook-dev/livebook",
    "vendor": "livebook-dev",
    "versions": [
      {
        "changes": [
          {
            "at": "1443dd23df6e7b9203b6797f0695a807aeb81dde",
            "status": "unaffected"
          },
          {
            "at": "acf4cb8c0c79b89c795b180f061be7de2d8b5aa9",
            "status": "unaffected"
          },
          {
            "at": "50f86982ebf36c22abeb379b55ec0f2859c83bb9",
            "status": "unaffected"
          }
        ],
        "lessThan": "*",
        "status": "affected",
        "version": "c02eb984f80a543c7a52b1d882c76f56aa5be743",
        "versionType": "git"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
file_entriespath/.livemdRelative path traversal in .livemd notebook file_entries allows an attacker to write files to arbitrary paths on the server by providing a malicious name in a URL-type file entry.CWE-23

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24 Oct 2026 16:10Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.18.1
CVSS 47
EPSS0.00609
SSVC
108