---
id: RUSTSEC-2026-0326
aliases:
  - GHSA-hw8m-q44c-ggrf
title: >-
  Rooting for GC values live across `try_call` may be missing, causing GC heap
  corruption
summary: >-
  Rooting for GC values live across `try_call` may be missing, causing GC heap
  corruption
severity: medium
cvss: 5.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H'
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: '2026-10-02T20:30:03.006892282Z'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/RUSTSEC-2026-0326'
references:
  - url: 'https://crates.io/crates/wasmtime'
  - url: 'https://rustsec.org/advisories/RUSTSEC-2026-0326.html'
  - url: 'https://github.com/bytecodealliance/wasmtime/pull/14478'
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-hw8m-q44c-ggrf
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`