---
id: "CVE-2026-118353"
kind: "vulnerability"
aliases: ["CVE-2026-118353"]
title: "Chrome: use-after-free in Paint lets a crafted page run code"
severity: "high"
cvss: null
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["browsers", "chrome", "desktop", "endpoints", "other"]
not_affected_if: ["chrome-at-or-above-156.0.8078.73"]
published_at: "2026-10-27T23:17:04+00:00"
first_seen_at: "2026-10-27T23:29:44+00:00"
updated_at: "2026-10-27T23:31:31+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-118353", "first_seen_at": "2026-10-27T23:29:44+00:00"}]
---

# Chrome: use-after-free in Paint lets a crafted page run code

A use-after-free bug in the Paint component of Google Chrome before 156.0.8078.73 lets a remote attacker run arbitrary code inside the browser sandbox when the victim opens a crafted HTML page. The sources rate it High in Chromium's severity scale and do not say whether a sandbox escape exists.

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

## How to check

- Open chrome://version in Chrome and read the version number
- Run `google-chrome --version` on Linux, or check the Chrome version in the installed app on macOS or Windows
- Check managed fleets for Chrome builds below `156.0.8078.73`

## Fix

- Update Google Chrome to `156.0.8078.73` or later
- Restart the browser after the update so the new build is running
- Update Chromium-based browsers (Edge, Brave, Opera) when their vendors ship a build with the Chromium fix

## Timeline

- 2026-10-27T23:29:44+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-118353

## From the sources

Use after free in Paint in Google Chrome prior to 156.0.8078.73 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_