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CVE-2026-66297

Estado: AnalizadaMedia (5)—

Improper Neutralization of Special Elements used in an OS Command (OS Command Injection) vulnerability in livebook-dev livebook allows command injection into generated deployment setup commands.

LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent.docker_instructions/2 and LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent.fly_instructions/4 in lib/livebook_web/live/hub/teams/deployment_group_agent_component.ex interpolate deployment group environment variable values into the generated Docker and Fly.io setup commands without shell escaping. The values originate from the deployment group configuration and reach the sinks through Livebook.Hubs.Dockerfile.online_docker_info/3.

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Both sinks place the value inside a double-quoted shell word, so a value containing a command substitution such as $(...) or backticks is evaluated by the shell without any need to break out of the quoting, and a literal double quote terminates the quoted word and allows arbitrary further tokens. The generated command is displayed in the Livebook web interface with a copy button, so a user who copies it and runs it without reviewing it first executes the injected commands on their own machine, under their own account.

An attacker requires privileges sufficient to set deployment group environment variables, while the resulting code execution occurs on the machine of whoever runs the generated command. The Kubernetes instructions are not affected, because they render the same values into a YAML manifest with escaping rather than into a shell command.

This issue affects livebook: from 0.13.0 before 0.18.7 and from 0.19.0 before 0.19.9.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Livebook — Livebook

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-66297",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-66297",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-08-06T13:04:06.826223Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "version": "3.1",
          "baseScore": 8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.1
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 5,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "ACTIVE",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "privilegesRequired": "HIGH",
          "subIntegrityImpact": "HIGH",
          "vulnIntegrityImpact": "NONE",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "HIGH",
          "vulnAvailabilityImpact": "NONE",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "HIGH",
          "vulnConfidentialityImpact": "NONE",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
      }
    ]
  },
  "affected": [
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:livebook-dev:livebook:*:*:*:*:*:*:*:*"
          ],
          "repo": "https://github.com/livebook-dev/livebook",
          "vendor": "livebook-dev",
          "modules": [
            "Elixir.LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent"
          ],
          "product": "livebook",
          "versions": [
            {
              "status": "affected",
              "version": "0.13.0",
              "lessThan": "0.18.7",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "0.19.0",
              "lessThan": "0.19.9",
              "versionType": "semver"
            }
          ],
          "packageURL": "pkg:hex/livebook",
          "packageName": "livebook",
          "programFiles": [
            "lib/livebook_web/live/hub/teams/deployment_group_agent_component.ex"
          ],
          "collectionURL": "https://repo.hex.pm",
          "defaultStatus": "unaffected",
          "programRoutines": [
            {
              "name": "'Elixir.LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent':docker_instructions/2"
            },
            {
              "name": "'Elixir.LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent':fly_instructions/4"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:a:livebook-dev:livebook:*:*:*:*:*:*:*:*"
          ],
          "vendor": "livebook-dev",
          "modules": [
            "Elixir.LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent"
          ],
          "product": "livebook",
          "versions": [
            {
              "status": "affected",
              "version": "0.13.0",
              "lessThan": "0.18.7",
              "versionType": "other"
            },
            {
              "status": "affected",
              "version": "0.19.0",
              "lessThan": "0.19.9",
              "versionType": "other"
            },
            {
              "status": "affected",
              "version": "0.13.0-cuda12",
              "lessThan": "0.18.7-cuda12",
              "versionType": "other"
            },
            {
              "status": "affected",
              "version": "0.19.0-cuda12",
              "lessThan": "0.19.9-cuda12",
              "versionType": "other"
            }
          ],
          "packageURL": "pkg:oci/livebook?repository_url=ghcr.io%2Flivebook-dev",
          "packageName": "livebook-dev/livebook",
          "programFiles": [
            "lib/livebook_web/live/hub/teams/deployment_group_agent_component.ex"
          ],
          "collectionURL": "https://ghcr.io",
          "defaultStatus": "unaffected",
          "programRoutines": [
            {
              "name": "'Elixir.LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent':docker_instructions/2"
            },
            {
              "name": "'Elixir.LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent':fly_instructions/4"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:a:livebook-dev:livebook:*:*:*:*:*:*:*:*"
          ],
          "repo": "https://github.com/livebook-dev/livebook",
          "vendor": "livebook-dev",
          "modules": [
            "Elixir.LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent"
          ],
          "product": "livebook",
          "versions": [
            {
              "status": "affected",
              "changes": [
                {
                  "at": "b2a8416d149043132fe5a14ed611e0fefc9dc9cd",
                  "status": "unaffected"
                },
                {
                  "at": "0c2487326bbb37cb1eb43bb2f76eb93ad9f8fd6b",
                  "status": "unaffected"
                },
                {
                  "at": "f8fe9c62cb8bfc1dd0ccda4ea4a57c5e91563c85",
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                }
              ],
              "version": "7cf4af5c10ec645f55a10f30e5661c54f6a6b319",
              "lessThan": "*",
              "versionType": "git"
            }
          ],
          "packageURL": "pkg:github/livebook-dev/livebook",
          "packageName": "livebook-dev/livebook",
          "programFiles": [
            "lib/livebook_web/live/hub/teams/deployment_group_agent_component.ex"
          ],
          "collectionURL": "https://github.com",
          "defaultStatus": "unaffected",
          "programRoutines": [
            {
              "name": "'Elixir.LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent':docker_instructions/2"
            },
            {
              "name": "'Elixir.LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent':fly_instructions/4"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-08-05T20:17:11.743",
  "references": [
    {
      "url": "https://cna.erlef.org/cves/CVE-2026-66297.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    },
    {
      "url": "https://github.com/livebook-dev/livebook/commit/0c2487326bbb37cb1eb43bb2f76eb93ad9f8fd6b",
      "tags": [
        "Patch"
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    },
    {
      "url": "https://github.com/livebook-dev/livebook/commit/b2a8416d149043132fe5a14ed611e0fefc9dc9cd",
      "tags": [
        "Patch"
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    },
    {
      "url": "https://github.com/livebook-dev/livebook/commit/f8fe9c62cb8bfc1dd0ccda4ea4a57c5e91563c85",
      "tags": [
        "Patch"
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    },
    {
      "url": "https://github.com/livebook-dev/livebook/security/advisories/GHSA-qpjc-w5mm-73mj",
      "tags": [
        "Exploit",
        "Patch",
        "Vendor Advisory"
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    },
    {
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-66297",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    },
    {
      "url": "https://github.com/livebook-dev/livebook/security/advisories/GHSA-qpjc-w5mm-73mj",
      "tags": [
        "Exploit",
        "Patch",
        "Vendor Advisory"
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper Neutralization of Special Elements used in an OS Command (OS Command Injection) vulnerability in livebook-dev livebook allows command injection into generated deployment setup commands.\n\nLivebookWeb.Hub.Teams.DeploymentGroupAgentComponent.docker_instructions/2 and LivebookWeb.Hub.Teams.DeploymentGroupAgentComponent.fly_instructions/4 in lib/livebook_web/live/hub/teams/deployment_group_agent_component.ex interpolate deployment group environment variable values into the generated Docker and Fly.io setup commands without shell escaping. The values originate from the deployment group configuration and reach the sinks through Livebook.Hubs.Dockerfile.online_docker_info/3.\n\nBoth sinks place the value inside a double-quoted shell word, so a value containing a command substitution such as $(...) or backticks is evaluated by the shell without any need to break out of the quoting, and a literal double quote terminates the quoted word and allows arbitrary further tokens. The generated command is displayed in the Livebook web interface with a copy button, so a user who copies it and runs it without reviewing it first executes the injected commands on their own machine, under their own account.\n\nAn attacker requires privileges sufficient to set deployment group environment variables, while the resulting code execution occurs on the machine of whoever runs the generated command. The Kubernetes instructions are not affected, because they render the same values into a YAML manifest with escaping rather than into a shell command.\n\nThis issue affects livebook: from 0.13.0 before 0.18.7 and from 0.19.0 before 0.19.9."
    }
  ],
  "lastModified": "2026-08-10T15:17:10.363",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:livebook:livebook:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6337F524-91D9-419C-BF55-B8BEBB8C96A2",
              "versionEndExcluding": "0.18.7",
              "versionStartIncluding": "0.13.0"
            },
            {
              "criteria": "cpe:2.3:a:livebook:livebook:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7B4998A3-46BF-4E69-8642-1156BB3E7480",
              "versionEndExcluding": "0.19.9",
              "versionStartIncluding": "0.19.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
}