CVE-2026-26329 (GCVE-0-2026-26329)
Vulnerability from cvelistv5 – Published: 2026-02-19 23:06 – Updated: 2026-02-20 15:38
VLAI
EPSS
VEX
Title
OpenClaw has a path traversal in browser upload allows local file read
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-20 15:27 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/openclaw/openclaw/security/adv… | x_refsource_CONFIRM |
| https://github.com/openclaw/openclaw/commit/3aa94… | x_refsource_MISC |
| https://github.com/openclaw/openclaw/releases/tag… | x_refsource_MISC |
Impacted products
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"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\u0027s `upload` action. The server passed these paths to Playwright\u0027s `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\u0027s 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 versi\u00f3n 2026.2.14, los atacantes autenticados pueden leer archivos arbitrarios del host Gateway proporcionando rutas absolutas o secuencias de salto de ruta a la acci\u00f3n \u0027upload\u0027 de la herramienta del navegador. El servidor pas\u00f3 estas rutas a las API \u0027setInputFiles()\u0027 de Playwright sin restringirlas a una ra\u00edz 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 autenticaci\u00f3n Gateway v\u00e1lida (token de portador / contrase\u00f1a), seg\u00fan lo requiera la configuraci\u00f3n del Gateway (En configuraciones predeterminadas comunes, el Gateway se enlaza a loopback y el asistente de incorporaci\u00f3n genera un token de gateway incluso para loopback); y tener la herramienta \u0027browser\u0027 permitida por la pol\u00edtica de herramientas para la sesi\u00f3n/contexto objetivo (y tener el soporte del navegador habilitado). Si un operador expone el Gateway m\u00e1s all\u00e1 de loopback (LAN/tailnet/enlace personalizado, proxy inverso, t\u00faneles, etc.), el impacto aumenta en consecuencia. A partir de la versi\u00f3n 2026.2.14, las rutas de carga ahora est\u00e1n confinadas a la ra\u00edz de cargas temporales de OpenClaw (\u0027DEFAULT_UPLOAD_DIR\u0027) y las rutas de salto/escape son rechazadas."
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"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
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"modifiedUserInteraction": "NOT_DEFINED",
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"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "LOW",
"providerUrgency": "NOT_DEFINED",
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
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They have not been verified by an analyst and are provided for guidance only.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
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