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CVE-2026-0933

Estado: AnalizadaAlta (7.7)—

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.

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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:

Credits Disclosed responsibly by kny4hacker.

Detalles técnicos trazas, registros y código del informe original
  *  Run any shell command.
  *  Exfiltrate environment variables.
  *  Compromise the CI runner to install backdoors or modify build artifacts.

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.

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).

🎯 Técnicas ATT&CK

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

AV:N + PR:L indica acceso remoto con privilegios (T1210). El parámetro `--commit-hash` sin validación permite inyección de comandos shell (T1059). Afecta principalmente a CI/CD, permitiendo exfiltración de variables (T1005) y manipulación de artefactos (T1574.008).

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 ManagementExecution PreventionDisable or Remove Feature or ProgramAuditVulnerability ScanningThreat Intelligence Program

Tecnologías afectadas (1)

Cloudflare — Wrangler

CWE

Referencias

JSON original (NVD)

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      "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.,  execSync(`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 parameter 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."
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      "value": "Resumen\nSe ha encontrado una vulnerabilidad de inyección de comandos (CWE-78) que existe en el comando 'wrangler pages deploy'. El problema ocurre porque el parámetro --commit-hash se pasa directamente a un comando de shell sin la validación o sanitización adecuadas, permitiendo a un atacante con control de --commit-hash ejecutar comandos arbitrarios en el sistema que ejecuta Wrangler.\n\nCausa raíz\nLa variable commitHash, derivada de la entrada del usuario a través del argumento CLI --commit-hash, se interpola directamente en un comando de shell usando literales de plantilla (p. ej., execSync('git show -s --format=%B ${commitHash}')). Los metacaracteres de shell son interpretados por el shell, lo que permite la ejecución de comandos.\n\nImpacto\nEsta vulnerabilidad es generalmente difícil de exploit, ya que requiere que --commit-hash esté controlado por el atacante. La vulnerabilidad afecta principalmente a entornos CI/CD donde 'wrangler pages deploy' se utiliza en pipelines automatizados y el parámetro --commit-hash se rellena desde fuentes externas, potencialmente no confiables. Un atacante podría 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 compilación.\n\nCréditos\nDivulgado de forma responsable por kny4hacker.\n\nMitigación\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 versión principal compatible."
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