---
id: "CVE-2026-118317"
kind: "vulnerability"
aliases: ["CVE-2026-118317"]
title: "Google Chrome: HTML memory corruption lets a crafted page run code"
severity: "high"
cvss: null
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["browsers", "chrome", "endpoints", "other"]
not_affected_if: ["chrome-at-or-above-156.0.8078.73", "no-browser-installed"]
published_at: "2026-10-27T23:17:00+00:00"
first_seen_at: "2026-10-27T23:29:43+00:00"
updated_at: "2026-10-27T23:32:02+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-118317", "first_seen_at": "2026-10-27T23:29:43+00:00"}]
---

# Google Chrome: HTML memory corruption lets a crafted page run code

A memory corruption bug in Chrome's HTML handling, fixed in version 156.0.8078.73, lets a remote attacker run arbitrary code inside the browser sandbox through a crafted web page. Chromium rates it High severity, and the sandbox limits what the attacker gets beyond the browser process.

_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` on Linux.
- Confirm whether any Chromium-based browser on managed machines reports a version below `156.0.8078.73`.

## Fix

- Update Google Chrome to `156.0.8078.73` or later.
- Restart the browser after the update so the fixed build is running.

## Timeline

- 2026-10-27T23:29:43+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-118317

## From the sources

Memory corruption in HTML 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)

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