FKIE_CVE-2026-0933

Vulnerability from fkie_nvd - Published: 2026-01-20 23:16 - Updated: 2026-06-17 10:11
Severity
9.9 (Critical) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Summary
SummaryA command injection vulnerability (CWE-78) has been found to exist in the `wrangler pages deploy` command. The issue occurs because the `--commit-hash` parameter is passed directly to a shell command without proper validation or sanitization, allowing an attacker with control of `--commit-hash` to execute arbitrary commands on the system running Wrangler. Root causeThe commitHash variable, derived from user input via the --commit-hash CLI argument, is interpolated directly into a shell command using template literals (e.g.,  execSync(`git show -s --format=%B ${commitHash}`)). Shell metacharacters are interpreted by the shell, enabling command execution. ImpactThis vulnerability is generally hard to exploit, as it requires --commit-hash to be attacker controlled. The vulnerability primarily affects CI/CD environments where `wrangler pages deploy` is used in automated pipelines and the --commit-hash parameter is populated from external, potentially untrusted sources. An attacker could exploit this to: * Run any shell command. * Exfiltrate environment variables. * Compromise the CI runner to install backdoors or modify build artifacts. Credits Disclosed responsibly by kny4hacker. Mitigation * Wrangler v4 users are requested to upgrade to Wrangler v4.59.1 or higher. * Wrangler v3 users are requested to upgrade to Wrangler v3.114.17 or higher. * Users on Wrangler v2 (EOL) should upgrade to a supported major version.
References
cna@cloudflare.comhttps://github.com/cloudflare/workers-sdkProduct
Impacted products
Vendor Product Version
cloudflare wrangler *
cloudflare wrangler *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "packageName": "Wrangler",
          "product": "Wrangler",
          "repo": "https://github.com/cloudflare/workers-sdk",
          "vendor": "Cloudflare",
          "versions": [
            {
              "lessThanOrEqual": "v3.114.16",
              "status": "affected",
              "version": "v3.0.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "v4.59.0",
              "status": "affected",
              "version": "v4.0.0",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "v2.0.15+"
            }
          ]
        }
      ],
      "source": "cna@cloudflare.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cloudflare:wrangler:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "C22AB9BD-AA08-4F21-9F00-EE077888827F",
              "versionEndExcluding": "3.114.17",
              "versionStartIncluding": "2.0.15",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cloudflare:wrangler:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "FDB2DBCA-953B-4E8E-A8D3-C978C083C1A2",
              "versionEndExcluding": "4.59.1",
              "versionStartIncluding": "4.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "SummaryA command injection vulnerability (CWE-78) has been found to exist in the `wrangler pages deploy` command. The issue occurs because the `--commit-hash` parameter is passed directly to a shell command without proper validation or sanitization, allowing an attacker with control of `--commit-hash` to execute arbitrary commands on the system running Wrangler.\n\n\n\n\nRoot causeThe commitHash variable, derived from user input via the --commit-hash CLI argument, is interpolated directly into a shell command using template literals (e.g., \u00a0execSync(`git show -s --format=%B ${commitHash}`)). Shell metacharacters are interpreted by the shell, enabling command execution.\n\n\n\n\nImpactThis vulnerability is generally hard to exploit, as it requires --commit-hash to be attacker controlled. The vulnerability primarily affects CI/CD environments where `wrangler pages deploy` is used in automated pipelines and the \n\n--commit-hash\u00a0parameter is populated from external, potentially untrusted sources. An attacker could exploit this to:\n\n  *  Run any shell command.\n  *  Exfiltrate environment variables.\n  *  Compromise the CI runner to install backdoors or modify build artifacts.\n\n\n\nCredits Disclosed responsibly by kny4hacker.\n\n\n\n\nMitigation\n  *  Wrangler v4 users are requested to upgrade to Wrangler v4.59.1 or higher.\n  *  Wrangler v3 users are requested to upgrade to Wrangler v3.114.17 or higher.\n  *  Users on Wrangler v2 (EOL) should upgrade to a supported major version."
    },
    {
      "lang": "es",
      "value": "Resumen\nSe ha encontrado una vulnerabilidad de inyecci\u00f3n de comandos (CWE-78) que existe en el comando \u0027wrangler pages deploy\u0027. El problema ocurre porque el par\u00e1metro --commit-hash se pasa directamente a un comando de shell sin la validaci\u00f3n o sanitizaci\u00f3n adecuadas, permitiendo a un atacante con control de --commit-hash ejecutar comandos arbitrarios en el sistema que ejecuta Wrangler.\n\nCausa ra\u00edz\nLa variable commitHash, derivada de la entrada del usuario a trav\u00e9s del argumento CLI --commit-hash, se interpola directamente en un comando de shell usando literales de plantilla (p. ej., execSync(\u0027git show -s --format=%B ${commitHash}\u0027)). Los metacaracteres de shell son interpretados por el shell, lo que permite la ejecuci\u00f3n de comandos.\n\nImpacto\nEsta vulnerabilidad es generalmente dif\u00edcil de exploit, ya que requiere que --commit-hash est\u00e9 controlado por el atacante. La vulnerabilidad afecta principalmente a entornos CI/CD donde \u0027wrangler pages deploy\u0027 se utiliza en pipelines automatizados y el par\u00e1metro --commit-hash se rellena desde fuentes externas, potencialmente no confiables. Un atacante podr\u00eda exploit esto para:\n\n  * Ejecutar cualquier comando de shell.\n  * Exfiltrar variables de entorno.\n  * Comprometer el ejecutor de CI para instalar puertas traseras o modificar artefactos de compilaci\u00f3n.\n\nCr\u00e9ditos\nDivulgado de forma responsable por kny4hacker.\n\nMitigaci\u00f3n\n  * Se solicita a los usuarios de Wrangler v4 que actualicen a Wrangler v4.59.1 o superior.\n  * Se solicita a los usuarios de Wrangler v3 que actualicen a Wrangler v3.114.17 o superior.\n  * Los usuarios de Wrangler v2 (EOL) deben actualizar a una versi\u00f3n principal compatible."
    }
  ],
  "id": "CVE-2026-0933",
  "lastModified": "2026-06-17T10:11:39.087",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.9,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 6.0,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "LOW",
          "subIntegrityImpact": "LOW",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "cna@cloudflare.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-0933",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-01-23T18:58:09.879547Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-01-20T23:16:06.043",
  "references": [
    {
      "source": "cna@cloudflare.com",
      "tags": [
        "Product"
      ],
      "url": "https://github.com/cloudflare/workers-sdk"
    }
  ],
  "sourceIdentifier": "cna@cloudflare.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "cna@cloudflare.com",
      "type": "Secondary"
    }
  ]
}



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