CVE Watch29 oct 2026

CVE-2026-119143

Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service vulnerability that allows guest code to trigger a host p

CVSS

4.8

Medio

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 29 oct 2026 · Última mod.: 29 oct 2026 · CWE-129

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service vulnerability that allows guest code to trigger a host panic through out-of-bounds zero-length stream operations. Malicious guests can perform zero-length component model stream reads or writes with unvalidated addresses, causing Direct{Source,Destination}::remaining to panic and crash WASIp3 embedders.

Referencias oficiales

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