---
id: RUSTSEC-2026-0325
aliases:
  - GHSA-cfhf-m2cr-62wj
title: Mis-typed WebAssembly tag imports can lead to GC heap corruption
summary: Mis-typed WebAssembly tag imports can lead to GC heap corruption
severity: none
vendor: wasmtime
product: wasmtime
ecosystem: rust
affected:
  - 'wasmtime >= 49.0.0, < 49.0.2'
patched:
  - wasmtime 49.0.2
published: '2026-10-02'
updated: '2026-10-02'
sourceUpdated: '2026-10-02T20:30:02.593176368Z'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/RUSTSEC-2026-0325'
references:
  - url: 'https://crates.io/crates/wasmtime'
  - url: 'https://rustsec.org/advisories/RUSTSEC-2026-0325.html'
  - url: 'https://github.com/bytecodealliance/wasmtime/pull/14471'
tags:
  - osv
  - rust
ingestedAt: '2026-10-03T07:26:10.040Z'
---

## Overview

This is an entry in the RustSec database for the Wasmtime security advisory
located at
https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-cfhf-m2cr-62wj
For more information see the GitHub-hosted security advisory.

## Affected packages

- `wasmtime >= 49.0.0, < 49.0.2`

## Remediation

Upgrade to a patched release:

- `wasmtime 49.0.2`