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CVE Watch22 oct 2026

CVE-2026-115383

Wasmtime 47.0.0 before 48.0.4 and 49.0.0 before 49.0.2 contains an improper validation vulnerability that accepts components whose core modu

CVSS

4.8

Medio

EPSS

0.2%

p8

KEV

—

Exploit Today

2

0-100

Publicado: 22 oct 2026 · Última mod.: 22 oct 2026 · CWE-1287

EPSS · 30d
0.2%EPSS · 30 días0.2%
2026-10-232026-10-25
Descripción técnica

Wasmtime 47.0.0 before 48.0.4 and 49.0.0 before 49.0.2 contains an improper validation vulnerability that accepts components whose core modules import WebAssembly tags with a subtype of the original type. Malicious guests can mis-type exception object payloads to corrupt the GC heap, causing Wasmtime to panic when the exceptions proposal is enabled.

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CVE-2026-115383 — Wasmtime 47.0.0 before 48.0.4 and 49.0.0 before 49.0.2 contains an improper vali · Pulse | Pulse