CVE-2026-105767

Estado: AplazadaBaja (2.1)—

Una neutralización incorrecta de elementos especiales utilizados en un comando del sistema operativo en la GitHub Action compuesta integrate-platform-docs de Chainguard Academy (edu), desde el commit 7375a80caabcc31c33ec90f29687ed78c13d16ff hasta antes del commit fb0efb2537d326ab18c07d620875b8ed2a4b39f3, permite a un actor que controle las entradas project_id o storage_bucket ejecutar comandos de shell arbitrarios en el runner de GitHub Actions, porque las entradas se interpolan directamente en comandos Bash gcloud storage cp en varios pasos mediante expresiones ${{ inputs.* }}.

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El único llamador dentro del repositorio pasaba secretos del repositorio y solo se ejecutaba con disparadores de confianza, por lo que no se conocía ninguna entrada no confiable que llegara a los pasos vulnerables.

Traducción automática del texto original de NVD (en inglés).

CVSS

Versión: 4.0
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/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
Puntuación base: 2.1

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.18%
Percentil entre todas las CVEs puntuadas: 7
Fecha de la puntuación: 9/10/2026

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1210 Exploitation of Remote Serviceslateral movement75 %
Impacto principalT1059 Command and Scripting Interpreterexecution85 %

Command injection en GitHub Action expone servicio remoto (gcloud) que requiere PR:H; entrada sin validación en bash permite ejecución de comandos arbitrarios.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account Management Disable or Remove Feature or Program Vulnerability Scanning Threat Intelligence Program Restrict Web-Based Content Network Segmentation

CWE

CWE-78

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-105767",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-105767",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-06T14:14:17.632816Z"
        }
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          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "LOW"
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        "impactScore": 2.5,
        "exploitabilityScore": 0.7
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    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "82cea9a6-e9e3-46fe-bdb0-3673de380178",
        "cvssData": {
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          "baseScore": 2.1,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "LOW",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/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",
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          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "LOW",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
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          "vulnAvailabilityImpact": "NONE",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "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"
        }
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    ]
  },
  "affected": [
    {
      "source": "82cea9a6-e9e3-46fe-bdb0-3673de380178",
      "affectedData": [
        {
          "repo": "https://github.com/chainguard-dev/edu",
          "vendor": "Chainguard",
          "modules": [
            "integrate-platform-docs composite action"
          ],
          "product": "Chainguard Academy (edu)",
          "versions": [
            {
              "status": "affected",
              "version": "7375a80caabcc31c33ec90f29687ed78c13d16ff",
              "lessThan": "fb0efb2537d326ab18c07d620875b8ed2a4b39f3",
              "versionType": "git"
            }
          ],
          "platforms": [
            "GitHub Actions"
          ],
          "programFiles": [
            ".github/actions/integrate-platform-docs/action.yaml",
            ".github/workflows/integrate-platform-docs/action.yaml",
            ".github/workflows/integrate-enforce-docs/action.yaml"
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-10-05T20:17:20.840",
  "references": [
    {
      "url": "https://github.com/chainguard-dev/edu/commit/fb0efb2537d326ab18c07d620875b8ed2a4b39f3",
      "source": "82cea9a6-e9e3-46fe-bdb0-3673de380178"
    },
    {
      "url": "https://github.com/chainguard-dev/edu/pull/3471",
      "source": "82cea9a6-e9e3-46fe-bdb0-3673de380178"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
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      "source": "82cea9a6-e9e3-46fe-bdb0-3673de380178",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper Neutralization of Special Elements used in an OS Command in the integrate-platform-docs composite GitHub Action of Chainguard Academy (edu) from commit 7375a80caabcc31c33ec90f29687ed78c13d16ff before commit fb0efb2537d326ab18c07d620875b8ed2a4b39f3 allows an actor who controls the project_id or storage_bucket inputs to execute arbitrary shell commands on the GitHub Actions runner, because the inputs are interpolated directly into Bash gcloud storage cp commands in several steps via ${{ inputs.* }} expressions. The only in-repository caller passed repository secrets and ran only on trusted triggers, so no untrusted input was known to reach the vulnerable steps."
    }
  ],
  "lastModified": "2026-10-06T15:17:15.487",
  "sourceIdentifier": "82cea9a6-e9e3-46fe-bdb0-3673de380178"
}