Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-94094

Gravedad CVSS v4.0:
BAJA
Tipo:
CWE-404 Apagado o liberación incorrecto de recursos
Fecha de publicación:
20/09/2026
Última modificación:
22/09/2026

Descripción

*** Pendiente de traducción *** A flaw has been found in OpenClaw up to 2026.9.5. Affected is the function createCanvasHostHandler of the file extensions/canvas/src/host/server.ts of the component Canvas Host Route. Executing a manipulation can lead to denial of service. The attack can be launched remotely. The exploit has been published and may be used. Fix suggestion's "streaming/size-limit" was never shipped - latest 2026.9.5 still buffers the whole file via readFile() (src/canvas/serve.runtime.ts:17,114), unlike the sibling WS path which caps at 64KB. The vendor was contacted early about this disclosure.

Impacto

Puntuación base 4.0
2.10
Gravedad 4.0
BAJA
Puntuación base 3.x
4.30
Gravedad 3.x
MEDIA
Puntuación base 2.0
4.00
Gravedad 2.0
MEDIA