---
title: "wasmtime — CVE-2026-115889"
description: "A security flaw affects the crates.io package wasmtime. Affected versions: < 36.0.19. Fixed from version 36.0.19. CVSS score 9.9."
canonical: https://inyourgeek.com/en/failles-de-securite/2026-10-23-cve-2026-115889
type: faille-de-securite
author: "Sébastien Soulier"
publisher: "InYourGeek"
language: en
datePublished: 2026-10-23
dateModified: 2026-10-23
---
# wasmtime — CVE-2026-115889

A security flaw affects the crates.io package wasmtime. Affected versions: < 36.0.19. Fixed from version 36.0.19. CVSS score 9.9.

## What to do

Update wasmtime to 36.0.19 or later.

| Fact | Value |
| --- | --- |
| Package | wasmtime |
| Ecosystem | crates.io (Rust) |
| Class | Other |
| Affected versions | < 36.0.19 |
| Fixed version | 36.0.19 |
| CVSS | 9.9 |
| CVE | CVE-2026-115889 |
| GHSA | GHSA-897f-g5gm-fmxm |
| Published on | October 23, 2026 |
| Severity | Critical |

## Sources

- [GitHub Security Advisory — GHSA-897f-g5gm-fmxm](https://github.com/advisories/GHSA-897f-g5gm-fmxm) — GitHub Security Advisories
- [NVD — CVE-2026-115889](https://nvd.nist.gov/vuln/detail/CVE-2026-115889) — NVD

---

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Method and safeguards : https://inyourgeek.com/en/methode
Full register : https://inyourgeek.com/en/failles-de-securite