---
id: "CVE-2026-118358"
kind: "vulnerability"
aliases: ["CVE-2026-118358"]
title: "Chrome: WebAudio memory corruption lets a crafted page run code in sandbox"
severity: "high"
cvss: null
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["browsers", "chrome", "chromium", "desktop", "endpoints", "other"]
not_affected_if: ["already-updated-to-156.0.8078.73"]
published_at: "2026-10-27T23:17:05+00:00"
first_seen_at: "2026-10-27T23:29:44+00:00"
updated_at: "2026-10-27T23:31:26+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-118358", "first_seen_at": "2026-10-27T23:29:44+00:00"}]
---

# Chrome: WebAudio memory corruption lets a crafted page run code in sandbox

A memory corruption bug in the WebAudio component of Google Chrome before 156.0.8078.73 can be triggered by a crafted HTML page. An attacker who lures a user to that page can execute arbitrary code inside the browser sandbox.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Run `chrome://version` in Chrome and compare the version with `156.0.8078.73`
- Check Chromium-based browsers and embedded Chromium builds the same way, since they ship their own version numbers

## Fix

- Update Google Chrome to `156.0.8078.73` or later
- Update other Chromium-based browsers and embedded Chromium builds to the vendor release that includes this fix

## Timeline

- 2026-10-27T23:29:44+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-118358

## From the sources

Memory corruption in WebAudio in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_