---
id: "CVE-2026-76025"
kind: "vulnerability"
aliases: ["CVE-2026-76025"]
title: "Chrome: use-after-free in FileSystem lets a web page run code"
severity: "high"
cvss: null
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["browsers", "chrome", "desktop-users", "runtime"]
not_affected_if: ["chrome-updated"]
published_at: "2026-10-30T01:16:46+00:00"
first_seen_at: "2026-10-30T01:27:58+00:00"
updated_at: "2026-10-30T01:29:47+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-76025", "first_seen_at": "2026-10-30T01:27:58+00:00"}]
---

# Chrome: use-after-free in FileSystem lets a web page run code

A memory-handling bug in Chrome's FileSystem component (a use-after-free) lets a crafted HTML page make the browser execute attacker code inside the renderer sandbox. Chromium rates it High severity.

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

## How to check

- Check the installed Chrome version in the browser's About page or with `google-chrome --version`
- Compare it against the fixed version `156.0.8078.79`

## Fix

- Google Chrome: update to `156.0.8078.79` or later

## Timeline

- 2026-10-30T01:27:58+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-76025

## From the sources

Use after free in FileSystem in Google Chrome prior to 156.0.8078.79 allowed a remote attacker to 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_