---
id: RUSTSEC-2026-0423
aliases:
  - GHSA-qw58-7h65-crq2
title: Cross-engine type confusion with host-created struct-types-with-supertypes
summary: Cross-engine type confusion with host-created struct-types-with-supertypes
severity: none
vendor: wasmtime
product: wasmtime
ecosystem: rust
affected:
  - 'wasmtime >= 50.0.0, < 50.0.1'
patched:
  - wasmtime 50.0.1
published: '2026-10-29'
updated: '2026-10-30'
sourceUpdated: '2026-10-30T10:45:03.975621660Z'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/RUSTSEC-2026-0423'
references:
  - url: 'https://crates.io/crates/wasmtime'
  - url: 'https://rustsec.org/advisories/RUSTSEC-2026-0423.html'
  - url: 'https://github.com/bytecodealliance/wasmtime/pull/15078'
tags:
  - osv
  - rust
ingestedAt: '2026-10-30T19:05:36.533Z'
---

## Overview

This is an entry in the RustSec database for the Wasmtime security advisory
located at
https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-qw58-7h65-crq2
For more information see the GitHub-hosted security advisory.

## Affected packages

- `wasmtime >= 50.0.0, < 50.0.1`

## Remediation

Upgrade to a patched release:

- `wasmtime 50.0.1`