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CVE-2026-26329

Estado: AnalizadaAlta (7.1)—

OpenClaw is a personal AI assistant. Prior to version 2026.2.14, authenticated attackers can read arbitrary files from the Gateway host by supplying absolute paths or path traversal sequences to the browser tool's `upload` action. The server passed these paths to Playwright's `setInputFiles()` APIs without restricting them to a safe root.

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An attacker must reach the Gateway HTTP surface (or otherwise invoke the same browser control hook endpoints); present valid Gateway auth (bearer token / password), as required by the Gateway configuration (In common default setups, the Gateway binds to loopback and the onboarding wizard generates a gateway token even for loopback); and have the `browser` tool permitted by tool policy for the target session/context (and have browser support enabled). If an operator exposes the Gateway beyond loopback (LAN/tailnet/custom bind, reverse proxy, tunnels, etc.), the impact increases accordingly. Starting in version 2026.2.14, the upload paths are now confined to OpenClaw's temp uploads root (`DEFAULT_UPLOAD_DIR`) and traversal/escape paths are rejected.

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.

Atacante autenticado (PR:L, AV:N) accede a archivos arbitrarios mediante path traversal en la herramienta de navegador. CWE-22 confirma la vulnerabilidad de traversal; impacto es lectura de datos sensibles del host Gateway.

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

Vulnerability ScanningThreat Intelligence ProgramPrivileged Account ManagementNetwork SegmentationDisable or Remove Feature or ProgramApplication Isolation and Sandboxing

Tecnologías afectadas (1)

Openclaw — Openclaw

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-26329",
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          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "none"
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              "technicalImpact": "partial"
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          "version": "2.0.3",
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      "lang": "en",
      "value": "OpenClaw is a personal AI assistant. Prior to version 2026.2.14, authenticated attackers can read arbitrary files from the Gateway host by supplying absolute paths or path traversal sequences to the browser tool's `upload` action. The server passed these paths to Playwright's `setInputFiles()` APIs without restricting them to a safe root. An attacker must reach the Gateway HTTP surface (or otherwise invoke the same browser control hook endpoints); present valid Gateway auth (bearer token / password), as required by the Gateway configuration (In common default setups, the Gateway binds to loopback and the onboarding wizard generates a gateway token even for loopback); and have the `browser` tool permitted by tool policy for the target session/context (and have browser support enabled). If an operator exposes the Gateway beyond loopback (LAN/tailnet/custom bind, reverse proxy, tunnels, etc.), the impact increases accordingly. Starting in version 2026.2.14, the upload paths are now confined to OpenClaw's temp uploads root (`DEFAULT_UPLOAD_DIR`) and traversal/escape paths are rejected."
    },
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      "value": "OpenClaw es un asistente personal de IA. Antes de la versión 2026.2.14, los atacantes autenticados pueden leer archivos arbitrarios del host Gateway proporcionando rutas absolutas o secuencias de salto de ruta a la acción 'upload' de la herramienta del navegador. El servidor pasó estas rutas a las API 'setInputFiles()' de Playwright sin restringirlas a una raíz segura. Un atacante debe alcanzar la superficie HTTP del Gateway (o invocar de otro modo los mismos puntos finales de gancho de control del navegador); presentar autenticación Gateway válida (token de portador / contraseña), según lo requiera la configuración del Gateway (En configuraciones predeterminadas comunes, el Gateway se enlaza a loopback y el asistente de incorporación genera un token de gateway incluso para loopback); y tener la herramienta 'browser' permitida por la política de herramientas para la sesión/contexto objetivo (y tener el soporte del navegador habilitado). Si un operador expone el Gateway más allá de loopback (LAN/tailnet/enlace personalizado, proxy inverso, túneles, etc.), el impacto aumenta en consecuencia. A partir de la versión 2026.2.14, las rutas de carga ahora están confinadas a la raíz de cargas temporales de OpenClaw ('DEFAULT_UPLOAD_DIR') y las rutas de salto/escape son rechazadas."
    }
  ],
  "lastModified": "2026-06-17T10:26:06.237",
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